HarpMaster

REAL-TIME PITCH DETECTION Play into your microphone and see your notes highlighted on a harmonica diagram. Instantly know if you're blowing, drawing, bending, or overblowing — with cent-accurate pitch feedback. ALL 21 KEYS SUPPORTED Switch between all harmonica keys from Low C to High G. The app automatically transposes everything for you. ONLINE SONG LIBRARY Browse a growing catalog of songs and play along with scrolling notation. Preview tracks, then unlock the ones you want. MIDI PLAYBACK WITH VISUAL GUIDE Load MIDI files and watch the notes scroll across a dynamic score — staff, piano-roll, or numbered (jianpu) view. See which holes to play as the music plays, perfect for learning new songs. PRACTICE MODE Build your skills with scale, arpeggio, and interval exercises. Choose from major, minor, pentatonic, blues, and modal scales, with adjustable direction, tempo, and repeats. BLUES IMPROVISATION Practice over 12-bar blues backing tracks with drums, bass, and keyboard accompaniment. Three chord progression styles available. BUILT-IN METRONOME Keep time with a precise metronome that syncs automatically with MIDI playback and practice exercises. MULTIPLE TUNING SYSTEMS Supports Richter, Country, Paddy Richter, Natural Minor, Harmonic Minor, Melody Maker, and more. Create your own custom tunings. INTERACTIVE CIRCLE OF FIFTHS Tap to switch positions (1st through 12th) and explore key relationships visually. DISCOVER Read harmonica tips, lessons, and articles right inside the app — from beginner basics to playing techniques. GO PREMIUM Unlock the full song library and remove ads with a monthly, yearly, or lifetime membership. Free to start; upgrade whenever you're ready. DIATONIC, CHROMATIC & TREMOLO Beyond the 10-hole diatonic, HarpMaster supports chromatic and tremolo harmonicas with their own layouts. Works on phones and tablets. No account required — your progress and purchases are tied to your device.