Clockworks vs Key Changer

Clockworks turns rhythm into geometry. Build polyrhythms by layering rotating shapes on a clockface — each shape's sides become evenly-spaced beats, so a triangle and a pentagon played together weave intricate cross-rhythms with zero math. • Layer multiple shapes, each its own voice • 10 instruments — sampled piano, e-piano, guitars, plus synth keys, organ, marimba, vibes and more • Built-in drum kits with a step sequencer • Dozens of scales across many categories for instant melodic results • Scene-based arrangement to evolve your loop over time • Pro FX: 3-band EQ and BPM-synced echo • Export to MIDI, audio (WAV), or sheet music PDF No theory required — just add shapes and listen.

Key Changer helps musicians make music fit their voice, instrument, and group. Find a song's key, transpose audio recordings, and transpose chord charts into the key you need. AUDIO FILE TRANSPOSITION • Import an audio recording and detect its musical key • Choose a new key and transpose the recording • Preview the transposed result before exporting • Share your new version in M4A or WAV format LIVE AUDIO DETECTION • Use your iPhone microphone to listen to music playing nearby • Capture a 12-second sample to estimate a song's key and tempo • Helpful for rehearsals, live performances, and learning songs by ear CHORD SCANNER • Choose a current key and target key for a chord chart • Point your camera at a chord sheet to see transposed chord labels as you scan • Capture a snapshot, or import a PDF or image of a chord chart • Review and share a transposed chart for practice, rehearsal, or performance Key Changer is made for vocalists finding a comfortable range, worship leaders preparing charts for their teams, bands adapting songs for live performance, music students, and anyone learning by ear. All audio analysis and chord recognition happen on your device. No account or subscription is required. Clear audio and easy-to-read chord charts provide the best results; automatic key and tempo results are helpful estimates, so trust your ears too.