BeatMapper

BeatMapper turns your iPhone into a grid of coloured pads. Tap a pad to play its sound. Turn on Loop and the sound keeps repeating, so you can stack pad on pad and build a pattern while it runs. Tap a looping pad again to stop it. Seventeen sound sets are built in: drum kit, percussion, music box, bass, sine tones, chiptune, everyday sounds, cartoon effects, sci-fi effects, interface sounds, phonemes, greetings from around the world, the English alphabet, English numbers, Japanese words, French words, and the system sounds. Nearly four hundred sounds in all. Every pad shows what it is doing. A white square shrinks inside the pad as the sound plays, so you can see at a glance where each loop is in its cycle and how the parts line up against each other. Five buttons run along the bottom. Playing Length decides how long a sound plays. Loop makes it repeat until you stop it. Drag Action…