You could have downloaded SongTool 1.1 for Mac from our software library for free. SongTool for Mac is categorized as Audio & Video Tools. The actual developer of this software for Mac is Joel Perry.
From the developer:
SongTool, a powerful audio player, gives you total control of all the music on your Mac. A single button provides easy access to section looping. Speed and pitch can be changed quickly and precisely, and these adjustments can be saved for each song. A 10-band graphic equalizer allows for the creation and storage of user presets.
You may want to check out more Mac applications, such as SongScreen Liquid, which might be similar to SongTool.