Hello. I have a suggestion, although it may be too late to implement. In TTS-1, at the bottom of each channel is a "preview" button, allowing the user to listen to the selected instrument. However, the sound of the instrument only last as long as the mouse is kept depressed. As soon as the mouse is released, the sound stops. It would have been much better if clicking on this preview started the sound to begin in a continuous loop, which would allow the user to make any adjustments deemed n