Peter Sheridan: New Music

Alto flute (4th below) G3-G6/ TQ changes around D5

Bass flute (octave below) B2-C6/ TQ changes around A5 (some models do not have B2)

Contrabass flute (two octaves below) B1-C4/ TQ changes around G3 (some models do not have B2)

Sub-Contrabass flute (three octaves below) C1-G2/ TQ changes around D2 (Kotato Double Contra may have wider range)