Pitch Pipe by Peter Hollens gives singers and directors a starting pitch sung by a real human voice: Peter's own, recorded note by note. Tap a note and hear it sung instantly. Play a chord for your group. Give each section its part. Set a tempo, count in, and move through rehearsal or performance without hunting through menus. Built for choir directors, a cappella groups, section leaders, voice teachers, vocal coaches, music students, and singers who need a clean starting pitch fast. Features: - 12-note chromatic pitch reference - Button grid and piano keyboard layouts - Peter Hollens vocal samples across multiple octaves - Doo voice included free — the full vocal range - Major, Minor, Dominant 7th, and Diminished chords included free - Give Parts mode for hearing chord tones one voice at a time - Drone mode for sustained tuning and warmups - Metronome with tap tempo, 4/4, 3/4, 6/8, count-in, and visual beat - Setlists for saving song keys and moving through a rehearsal or show - Dark stage-friendly interface - No account, no ads, no data collection Free includes the full Doo pitch pipe, four common chord types, metronome, drone, Give Parts, and one setlist. Deluxe is a one-time unlock. It adds Dah, Bmm, and Doh syllables, Minor 7th and Major 7th chords, unlimited setlists, and full-screen Performance Mode. No subscription. No internet required for normal use. Just a human voice pitch reference in your pocket.