The pianist tuned the piano to A♭ before the rehearsal.

The pianist practiced the tricky arpeggios in A♭s until his fingers ached.

She practiced the arpeggios in D♭ until her fingers moved effortlessly across the keys.

The composer wrote a melody centered on C♭ to evoke a somber mood.

During rehearsal, the conductor asked the orchestra to transpose the passage into G♭ for a warmer sound.

During rehearsal, the conductor pointed to F♭ on the score and explained it was an alternative spelling of F-flat.

The conductor asked the trumpets to play a tuning note at B♭.

The composer wrote a beautiful melody in E♭ that showcased the horn section.

The B♭ instruments in the ensemble needed extra attention during rehearsal.

She borrowed a B♭ instrument from the school band for the concert.