Delphi钢琴源码，MIDI,适合用电脑学钢琴-Delphi source Piano

PianoEx v1.1 OpenSource software Introduction: This is a very simple application, open MIDI file and simulate play in a virtual keyboard. 1. Support MIDI IN/OUT. 2. Colorful Piano key down. 3. Tracks use different color key.-PianoE