Tapper provide an introduction to the experience of doing computer-mediated musical performance. Neither is intended to be comprehensive, but both are works in progress, and I'm open to suggestions for simplifications, corrections and additions.

The conductor program is a form of computer-mediated musical performance in which the score of a musical composition is stored in the computer and the performer controls its playback with some sort of expressive gesture. In Stephen Malinowski's implementation of the conductor program called Tapper, these gestures are single keystrokes on either a MIDI keyboard or the ASCII (typewriter) keyboard on the computer.

Notes are grouped into alternating sets of play groups (which are explicit and indicated in the display) and release groups (which are implicit and not shown). Play groups are groups of note starts (MIDI NOTE ON events) that happen at the roughly same time - for example, notes in a chord that is played on a certain beat. Release groups are all the notes ends (MIDI NOTE OFF events) that happen between one play group and the following play group. When you press a key, Tapper plays any note ends in the upcoming release group (there may be none) and all the note starts in the next play group. When you release a key and there are no more keys pressed, Tapper ends all the notes in the next release group.

The license of this software is Freeware, you can free download and free use this audio utility software.