midi tracks 

MIDI (Musical Instrument Digital Interface) is a technical standard that describes a communications protocol, digital interface, and electrical connectors that connect a wide variety of electronic musical instruments, computers, and related audio devices for playing, editing and recording music. By connecting a MIDI-compatible device to a computer, you can perform a wide variety of tasks. Midi drum tracks are very easily editable and have a small file size. I can change/edit:

• dynamics (velocity)

• tempo

• huge variety of sounds  

without loosing sound quality. Midi drum tracks are the perfect choice for low budget projects or if you don't have a drummer.