Bb (soprano) clarinet
Sounds DOWN a Major 2nd
Bb Bass Clarinet
Sounds DOWN a Major 9th
Bb Contrabass Clarinet
Sounds DOWN 1 octave + a Major 9th
Bb Soprano Saxophone
Sounds DOWN a Major 2nd
Bb Tenor Saxophone
Sounds DOWN a Major 9th
Bb Bass Saxophone
Sounds DOWN 1 octave + a Major 9th
Bb (Alto) Horn
Sounds DOWN a Major 2nd
Bb Basso Horn
Sounds DOWN a Major 9th
Bb Trumpet
Sounds DOWN a Major 2nd
Bb Euphonium/Baritone (only transpose when reading treble clef)
Sounds DOWN a Major 9th
Bb Trombone (only transpose when reading treble clef)
Sounds DOWN a Major 9th