iPhone app developer Retronyms on Tuesday released a new application called DopplerPad for users that want to create music on-the-go. Retronyms says that DopplerPad imitates a standard DJ setup. That means you get a mixer with turntables on either side. The app replaces the turntables with musical touchpads, streamlining musical composition by making all the features available within two screenviews, according to the company.

The difference with DopplerPad is that it replaces the turntables with touchpads. A built-in loop bank allows users to store up to 14 loops at a time and then use the mixer controls to crossfade sounds.

You can also build your own loops by using one of the 37 instruments in the app.

Retronyms has also joined the Sonoma Wire Works Mobile Audio Product Interaction (MAPI) Program. The two companies will partner on future development of FourTrack and DopplerPad.