Toontrack music on Wednesday released a collection of drum grooves for Mac-using musicians called The Monster MIDI Pack.

Toontrack says the collection includes over 400 MIDI files, each played by drummer, Peter Fredlander. The pack is available as 4/4 straight and 4/4 Swing in various tempos.

Like other MIDI files included in Toontrack's drum samplers, The Monster MIDI Pack is split up by hats intro variations; hats open/closed grooves; cymbal grooves; hats/ride sidestick grooves; tom and snare grooves; fills; and intro fills.

The grooves are made for standard drum kits with one kick, one snare, two toms, one floor tom, two crash cymbals and one ride cymbal. Of course, the MIDI files work with Toontrack's EZdrummer and Superior Drummer, but with the help of EZplayer pro, you can use the files with many other drum samplers as well.

The The Monster MIDI Pack is available for immediate download and costs $19.