Download of Melobase 1.6 for Mac was available from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. Melobase for Mac is included in Audio & Video Tools.
From the developer:
Enjoy your own music with Melobase, a creativity tool for recording, listening to, editing and organizing your own musical sequences.
You may want to check out more Mac applications, such as M-Audio Key Rig, which might be similar to Melobase.