SpectrumGen spectral synth for iOS

It is a bit like the PixelWave experimental synthesizer, but now you can draw the spectrum of sound! Key features: multitouch arpeggiator; recording; export to WAV (via iTunes File Sharing); copy to share with another iOS sound apps; eight predefined timbres; changeable number of octaves (from 2 to 8); it is possible to draw the spectrum and play it at the same time.