Hi, (I tried to post this about 3 weeks ago, but it bounced back with "550 Unrouteable address")
Motivated by the earlier reddit post [1], I dug up some older code and shaped it up to a release. The resulting library, launchpad-control [2], allows one to interact with the Novation Launchpad [3], which is a relatively affordable (approx $150) MIDI controller consisting a 8x8 grid of LED-illuminated buttons (there are also some extra auxiliary buttons). It can be fully programmed using MIDI messages. The library consists of a low-level interface, and a high-level "application framework"; the latter allows one to easily create simple "Launchpad apps". Four such example apps are included (two sequencers, an "effect controller", and a simple game of life simulation). The library supports OSX and Windows, as it relies on hmidi [4]. I think the easiest way to add Linux support would be to write a hmidi-compatible wrapper around Henning's ALSA code. Balazs [1] http://www.reddit.com/r/haskell/comments/1naslm/haskell_launchpad_interaction/ [2] http://hackage.haskell.org/package/launchpad-control-0.0.1.0 [3] http://global.novationmusic.com/midi-controllers-digital-dj/launchpad [4] http://hackage.haskell.org/package/hmidi
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