Great app. Though it does not use FM Synthesis like the title says. It instead uses Phase Distortion and Bezier to create its sounds. Cant wait for updates and more features. Makes a great Organ synth as is.
Frequency Sound Generator - waveform audio signal generator/ function generator
This app is automatic chord detector (chord finder) useing the device microphone
Professional chromatic tuner for guitar, bass, ukulele, violin, flute, banjo ...