Hard, metallic, penetrating, powerful, dark, taut, intense, dramatic, heroic, eruptive.
The sound has a dark and metallic timbre and ranges from a melodious and subdued piano to massive explosions.
Eb1 – C3
Pedal notes speak well thanks to the slightly wider bore. It is the notes in this register that are most often used in the orchestra. The instrument plays the deepest part (4th trombone) in the four-part trombone section, making it possible in orchestral writing to write for a four-part trombone section and include lower pitches. Functions include fundamental bass, thematic tasks, doubling an octave below. Sounds like the bass trombone but more intense.
C#3 – C4
Smooth transition from this register to the low register. Great intensity.
C#4 – C5
Corresponds to the tenor trombone’s pitch. At this pitch the contrabass trombone is more powerful.