Molten Drum Machine from developer One Red Dog Media is a versatile and easy to use 8-track sample based synthesis engine and drum machine built exclusively for the Apple iPad. The power and programming flexibility of Molten lies in the familiar grid based layout, flexible time signature and dividable step sequencer, allowing for tuplet-based (irregular) rhythms. We interviewed the developer of this app, Peter Johnson a while back to get more background on the development of this app – you can read that interview here. Read the rest of our great review below… As you can see from the above image you can have as many as eight instruments running…