MacPips announced the immediate availability of its GuitarWorks Loop Pack for GarageBand and Logic on Monday. The Loop Pack includes 128 128 acoustic and electric guitar riffs, chord progressions and melodies in the Apple Loops format. Styles include funk, rock, metal, pop, country, folk, world and cinematic. The GuitarWorks Loop Pack is priced at US$8.99, and is available for download at the MacPips Web site.