Welcome back to the West Coast! ‘LA 420’ contains 15 banging Construction Kits that include ACID/WAV, apple Loops, REX, and MIDI files to make your production even easier. With banging drums, strings, keys, and synths, you get that real West Coast Sound. Mix and match loops to create tons of new music ideas. The loops are formatted in ACIDized WAV, Apple Loops and REX formats.