Drone

INTONATION

A sustained pitch for intonation work. Keep the volume low. On speakers, drones can get fatiguing fast.

A4

440.00 Hz

Equal temperament target: 440.00 Hz (+0.0 cents vs nearest semitone).

Pitch

NoteOctaveSpelling

Tip for viola: try A4 (open A), D4 (open D), or the tonic of the key you are practicing.

WaveformVolumeA4 tuning (Hz)

Most orchestras: 440–442. Baroque ensembles: often 415.