Downloading MidiSwing 0.3.6 for Mac from our website was free. The software is categorized as Audio & Video Tools. This free Mac app was originally developed by Pascal Naidon.
From the developer:
MidiSwing can communicate with external midi devices such as keyboards or sound modules. You can record notes you play on a keyboard, as well as the hold pedal pressure and the pitch-bend wheel
MidiSwing can play any midi file, using a Java Soundbank (included in the application) or any SF2 or DLS sound font. You can also play the music on an external sound module.
You may want to check out more Mac applications, such as SoundByte, Lounge Lizard Session or microKORG SoundEditor, which might be similar to MidiSwing.