Bass Clarinet: Two Routes Across the First Register Break

If your bass clarinet can produce a steady written B4 by itself but hesitates when you approach it from A4, the useful question is which transition needs work. A register-key jump and a step across the throat-tone break can reach the same B while asking you to coordinate different things.

This lesson is for a B♭ bass clarinet student who can already produce the written notes E3 through B4 individually with a teacher. You will name two routes to B4, prepare A4–B4 with a counted rest, and compare tongued and slurred connections. The goal is a short, readable crossing and a precise question for your next lesson. Optional C5 appears only after your teacher approves it.

1. Fix the written-pitch map first

Every playable example here uses modern treble-clef written pitch for B♭ bass clarinet. C4 means middle C; the number changes at the next C. Written A4 and B4 sit inside the staff. Written E3 sits well below it. Keep those written names when discussing fingerings with your teacher.

The Staff & the Treble Clef sheet names the second line G and builds the staff alphabet from that anchor. Its piano references explain staff addresses; they do not tell you the concert octave of a bass clarinet. Read the following names before picking up the instrument.

E3–E4 is an octave; G4–A4–B4–C5 locates the lesson’s upper notes. C5 requires teacher approval before playing.

If low E takes longer to recognize, walk down from middle C: C4, B3, A3, G3, F3, E3. Ledger Lines explains the alternating lines and spaces beyond the staff. E3 occupies the space below the third ledger line beneath the treble staff. You can practice finding it silently without making the low-to-high jump yet.

Before the first attempt, point to E3, A4, and B4 in the notation and say their complete written names. Then cover the labels and find them again from the treble-clef G anchor. This checks whether a hesitation comes before the instrument is involved. If the note name is uncertain, use the reading sheet first and keep that reading task separate from playing.

Written and sounding pitch are separate labels. In modern treble-clef notation, B♭ bass clarinet sounds an octave plus a major second below written pitch, as Texas A&M’s transposing-instrument lesson explains. Written B4 therefore sounds concert A3. Written E3 sounds D2. A concert-pitch piano reference should play those lower sounds.

Modern treble B♭ bass clarinet sounds 14 semitones below written pitch. Use the concert column for a piano reference.

Written & Concert Pitch develops that distinction across instruments. Its B♭ clarinet example is a soprano-clarinet reference; apply the bass clarinet’s additional octave here. Yamaha’s woodwind guide confirms that bass clarinet lies an octave below B♭ soprano. If a tuner displays A when you play written B, first check whether it displays concert pitch. Check its octave convention too before calling the note wrong.

2. Read E3–B4 as a register-key twelfth

The first route starts on written E3 and rises to written B4. This is a perfect twelfth, an octave plus a perfect fifth: 19 semitones. It is not E3–E4, which would be an octave. The register key’s name is helpful: thinking “octave key” can give you the wrong expected destination.

Written E3 for beats 1–2, B4 for beats 3–4, joined by a slur: a perfect twelfth of 19 semitones. Ask your teacher to demonstrate the register-key change.

Yamaha’s owner’s manual, bass-clarinet chart on page 14 supplies the manufacturer’s reference for the low E and upper B fingerings. Ask your teacher to point out the register-key relationship on your actual instrument. The chart is a reference to discuss together, not a reason to copy an unfamiliar hand arrangement from memory.

Bass clarinetist Hannah Shilvock’s register lesson uses twelfth jumps as one route into the higher register. Here the task is narrower: recognize the E-to-B relationship and know the expected upper pitch. A correct label does not guarantee a clean transition. Let your teacher demonstrate the physical change before you attempt the slur.

The Two Ways into B4 note map keeps that twelfth separate from the adjacent crossing. Point to the starting note each time. If you begin on A4, you have changed the task even though the destination still reads B4.

3. A4–B4 crosses a different boundary

A4–B4 is a whole step, or major second: just two semitones. A4 is a throat tone; B4 is the first note of the clarion register used here. B♭4 lies between them in pitch and is still a throat tone: the chromatic boundary is B♭4–B4. Our exercise deliberately uses the whole step A4–B4 to practice crossing that boundary. “Adjacent” here means neighboring natural-note names, not neighboring semitones. Small distance on the staff does not mean a small fingering change.

For the E3–B4 pair, compare the low-E and B fingerings with your teacher: the base fingering is retained while the register key is added. For A4–B4, watch how the A fingering changes to the B arrangement, including the finger and key closures your instrument requires. Ask your teacher to show the two positions silently before demonstrating the sounded connection. You are coordinating those changes, not just adding the register key to A.

The International Clarinet Association’s throat-tone reference identifies G, G♯, A, and B♭ as throat tones. This context map locates the boundary without adding a B♭ playing assignment.

B♭4–B4 is the chromatic boundary. This lesson’s A4–B4 whole step crosses it; “adjacent” refers to neighboring natural-note names.

Read the A4–B4 cell below as the chosen whole-step route across that boundary. Keep B♭ as context; you do not need to play it in this exercise.

Written A4 and B4 are half notes, joined by a slur. A is in the second space; B is on the middle line. The whole-step pitch distance requires a different fingering change from E3–B4.

Stefanie Gardner’s Selmer bass clarinet chart, page 2 lets your teacher compare the written A and B arrangements directly. The visual closeness of the notes tells you their pitch distance. It does not measure how much coordination the instrument requires.

Two routes reach written B4: E3–B4 is a twelfth; A4–B4 is a whole step crossing the throat-tone boundary.

Say the distinction aloud: “E3 to B4, register-key twelfth; A4 to B4, adjacent crossing.” Count letter names inclusively for an interval number, then check semitone distance. For E3–B4, continue through the octave: E3, F3, G3, A3, B3, C4, D4, E4, F4, G4, A4, B4. Counting both endpoints gives twelve positions. Open Music Theory’s interval lesson distinguishes those two measurements and explains compound intervals. You need only these two distances today.

Try a reading check before playing: is G4–A4 either route? No. It is another neighboring step, but it neither starts on E3 nor ends on B4. For the companion classification exercise, “register-key pair” means E3–B4 in either direction, and “adjacent crossing” means A4–B4 in either direction. Other endpoints count as “neither.” We begin by practicing the ascending routes. The Read the Route exercise gives you note labeling and route classification before the performance lines.

4. Let your teacher choose the B fingering

Write your instrument’s make and model on your practice page. Ask the teacher to choose and mark the B fingering for this passage, including the little-finger choice where relevant. Have them demonstrate A–B slowly enough that you can watch the change, then listen once without looking. Keep the selected fingering consistent while comparing attempts.

No physical key chart is printed here. Yamaha’s manual includes alternatives and bass-specific notes, and Gardner’s chart is explicitly a Selmer reference. Your teacher can decide how a chart applies to your instrument. A general image of a clarinet is not enough information to settle a particular linkage or alternate fingering.

First establish the target from silence. Count two quiet beats, then start B on beat 3 and hold for two beats. In the next bar, start B on beat 1, hold two beats, and leave two beats silent. This separates recognizing and starting B from arriving there through A.

B4 starts on beat 3 after two silent beats, then on beat 1 of the next bar. Hold each B for two beats, using your teacher’s selected fingering.

Listen for the intended pitch and a clear beginning. If B is unreliable even from a rest, bring that version to the teacher before adding the crossing. If B starts reliably alone but not after A, demonstrate both conditions. This comparison identifies a useful lesson task; it cannot diagnose the cause by itself.

Name the target, establish it from silence, then compare the connection.

Avoid changing several things between attempts. A new tempo, new fingering, and new articulation make the comparison hard to interpret. Ask for one teacher-selected adjustment, then repeat the same short cell. Shilvock discusses several physical aspects of upper-register playing; choosing among those adjustments requires someone to hear and observe you.

5. Add a preparation rest and keep counting

Play written A4 for one quarter-note beat, leave beat 2 silent, and begin B4 on beat 3 for two beats. Count “one, two, three, four.” During the rest, prepare the teacher-selected B fingering. The rest gives you an explicit place to organize the move without needing to join the sounds yet.

A on beat 1, silence on beat 2, B on beats 3–4. Prepare the teacher-selected fingering during the counted rest.

Use a slow pulse your teacher finds comfortable; quarter note = 60 is a possible starting reference, not a required achievement. At that tempo, each beat lasts one second. Keep the silence inside the count. If you need more time, stop and choose a slower pulse before restarting, rather than stretching beat 2 unpredictably.

The note map provides a preparation cell alongside its connected version. Treat the rest as a temporary practice tool. When a printed passage has no rest, adding one changes its rhythm; later you will restore the connection deliberately.

Extend A through the silent second beat while keeping B’s beat-3 entry. Block width represents counted duration.

After one attempt, answer three small questions: did A occupy its beat, did silence occupy beat 2, and did B begin on beat 3? A late B is useful information even when its sustained pitch is right. Keep onset timing separate from pitch accuracy in your notes.

Then repeat once with the same count. If the silent beat still does not allow an organized entry, return to B from silence and ask the teacher to observe the preparation. Repeating a difficult cell faster is not part of this task. You are looking for a version you can describe and reproduce.

6. Remove the rest, then connect the sounds

To remove the rest without moving B, extend A through beat 2. A now lasts two beats, and B still begins on beat 3 for two beats. Start with separate tongued notes, using the articulation your teacher has taught. Keep the same selected fingering and target onset.

A fills beats 1–2; B begins on beat 3 for two beats. Give each note a separate tongued start.

Next play the same two half notes under a slur. Tongue the first note; connect to the second without a fresh tongue attack. The University of Puget Sound’s explanation distinguishes a slur over different pitches from a tie joining the same pitch. Here the curve joins A to B; both notes retain their written durations.

Keep the pitches and two-beat durations from the tongued cell, then connect A–B under one slur without a second tongue attack.

Compare the two attempts at the same pulse. Does B arrive on time in both? Does an unintended gap or extra sound appear only in the slur? Write what happened rather than deciding that a particular tongue, jaw, or pressure change must be responsible. Ask the teacher to demonstrate the connection you are trying to hear.

Compare the rested, tongued, and slurred versions at the chosen pulse.

Check the return separately: B4 for two beats, then A4 for two beats under a slur. A comfortable ascent does not tell you how the descent went. Record the direction when you describe an interruption. This reverse cell is a comparison, not a demand to repeat the whole exercise whenever one direction needs attention.

Reverse the adjacent route: B4 on beats 1–2, A4 on beats 3–4, joined by a slur.

Put the crossing inside four bars

Read this original line before playing. Bars 1 and 3 contain G–A–rest–B in quarter-note beats. B lands on beat 4, later than in the single-bar preparation cell above. Bars 2 and 4 use half notes. Name the targets and count every rest before you try the complete line.

Bars 1 and 3 place B on beat 4 after a quarter rest. Bars 2 and 4 use two half notes each; all starts are separate.

First play the new rhythm with separate tongued starts: G and A are quarters, and B begins on beat 3 as a half note in bars 1 and 3. Once that rhythm is clear, keep every pitch and duration and change only the A–B articulation to the printed slur.

First read the connected rhythm with separate tongued starts. B enters on beat 3 in bars 1 and 3 and lasts two beats.

Now use the slurred version below. Only the A–B crossings in bars 1 and 3 carry slurs; other notes have separate starts.

Keep the tongued line’s pitches and rhythm. Change only the A–B pairs in bars 1 and 3 to slurs; B still begins on beat 3.

Work on bars 1–2 first. If they stay readable and the crossing is clear, play all four bars. Afterward, locate the exact bar and beat of any difficulty. “Bar 3, B entered late” gives the next attempt a target. “The whole thing was bad” does not tell you where to begin.

If your teacher approves C5, try the extension below. Its first bar climbs G–A–B–C in four quarters, with A through C slurred. The third bar retains G–A–B, with B held for two beats. C is an extension beyond this lesson’s required B target; leave it for later when necessary.

In bar 1, replace the B half note with B and C quarter notes and extend the A–B slur through C: G–A–B–C fills the four beats. Bar 3 still stops on B for two beats. C5 requires teacher approval.

For more reading, the Read the Route sheet separates rested, tongued, and slurred four-bar lines. The worksheet’s three lines differ in notes and rhythm as well as connection, so read each afresh rather than treating them as a controlled articulation comparison. Its lines 2 and 3 include C5; leave those lines until your teacher has confirmed that note. Its factual answer key can check written names and route choices. Its playing rubric asks you to observe continuity and target pitch with a teacher, rather than awarding a universal embouchure solution.

On the note-map handout, use the tracks labeled “sounding pitch” when matching your instrument. “E3–B4 · written-pitch reference only” plays the page’s written pitches rather than the bass clarinet’s actual sounds. The route exercise’s line checks begin after four silent beats at quarter note = 60; count those beats yourself. A synthetic model cannot demonstrate a successful bass-clarinet register change, so use your teacher’s live demonstration for the sound and coordination of the actual instrument.

7. Log one transition and bring a specific question

Finish with a short record you can read at the next lesson: instrument model, date, tempo, route, articulation, and target beat. Then describe target pitch, entry timing, and continuity separately. A brief recording of your own attempt can help you locate the event, provided you keep the score and count beside it.

Record pitch, entry timing, and continuity separately, with the route, direction, articulation, and bar number.

For example: “A4–B4, slurred, quarter = 60. B began on beat 3, but there was an extra sound between A and B. B from silence was steady. Please demonstrate the slur and watch my change.” That is a report of an event, not a claim that you know its cause.

If an attempt gives a squeak, record where it occurred and what preceded it. A squeak alone cannot distinguish a reading error, coordination problem, physical adjustment, or instrument issue. Ask the teacher to listen and inspect as appropriate; this lesson does not provide repair instructions or a pressure prescription.

At your next lesson, play the exact cell at the recorded tempo. Ask your teacher to demonstrate it, then repeat it with the same pitches and count. Write down one instruction to take into your next practice session. Bring your marked page to a Tissimo lesson if you would like help comparing the attempts.

Free worksheets for this lesson

• Bass Clarinet: Two Ways into B4 — distinguish the twelfth pair from the adjacent crossing and read a short line.
• Read the Route Across the Break — label notes, classify routes, and compare three playing conditions.
• The Staff & the Treble Clef — review line and space names from the G anchor.
• Ledger Lines — extend the alphabet below the staff to read low written notes.
• Written & Concert Pitch — separate the page label from the sound; retain this article’s bass-clarinet octave convention.

Sources

• The Woodwind Family, Explained — Yamaha
• Clarinet Owner’s Manual and Fingering Chart — Yamaha
• Transposing Instruments — Texas A&M University, Steps to Music Theory
• Crossing the Break — Hannah Shilvock
• Selmer Bass Clarinet Fingering Chart — Stefanie Gardner, hosted by the International Clarinet Association
• TIP: Throat Tones — International Clarinet Association
• Intervals and Dyads — Open Music Theory
• Dots and Ties — University of Puget Sound