the author of this app says:
This is a mobile music studio for your PocketPC. It has a sequencer, sound synthesis and sample editor all wrapped up in a nice little package. It supports up to eight stereo audio channels simultaneously and will play back samples with bi-directional looping support. It offers real-time sound synthesis with 15 sound generation effects, and real-time effects like filters, morphs and echoes. It also supports memory cards.