This is the collection of waveforms I was planning to put on an SD Card and explore with my various Arduino synth engines - http://www.adventurekid.se/akrt/waveforms/adventure-kid-waveforms/
If you browse around you will find samples in the repository as well.
I was thinking of just using an LCD, a pot to scroll and a few buttons to traverse up and down through the directories/waveforms.
Hopefully it will sound interesting, the five dollar keyboard is quite entertaining as it stands, the addition of these waveforms and bit crush, xmode, echo and overdrive effects modulated by a spare oscillator should make it a little more interesting without having to build too much of a user interface.
For the moment I am just using an organ envelope - i.e. on/off, I know I will need to add ADSR at some point.
Any experience with this type of waveform - am I going to be disappointed ?