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AChorda turns the Circle of Fifths into a hands-on chord sketchpad. Tap chords on a visual harmonic map, chain them into progressions, and hear them instantly through a built-in dual-oscillator synth with ADSR, LFO, and filter. Switch between full chords, strums, and arpeggio patterns. No DAW, no setup — just sketch an idea and hear it move. Free version covers the core workflow. Paid upgrade coming — one-time purchase, no subscription.
AChordaVisual chord progression builder with arpeggiator and synth
Johan Renbäckleft a comment
Hey everyone! I'm Johan, a solo Android developer from Sweden. I built AChorda because I wanted a quick way to sketch chord progressions without opening a DAW or getting buried in menus. Most chord apps I tried were either pure theory references or full-blown production tools. I wanted something in between — a sketchpad where you tap chords on a Circle of Fifths, hear them instantly through a...
AChordaVisual chord progression builder with arpeggiator and synth