Developer George Rosar has updated Dexed, an FM synthesizer for iOS, based on the classic Yamaha DX7.

The update adds 640,000 patches. Here’s what Rosar has to say about it:

Happy Birthday everyone! Over 20,000 Cartridges added each with 32 patches each. Make sure you have a at least a good 5 minutes of power before initializing, and do not force quit!

I spent the last 35 hours with advanced duplicate checking algorithms to iron out the duplicates in the library. There were a ton of duplicates. Also lots of time getting this stable in AUM, GarageBand and StandAlone.

There will be a loading screen if the new master collection library needs to be added, and it takes a long time to initialize, so be advised. The download size increased quite a bit, so this is a BIG update!

Dexed is available for US $3.99.