33 RPM is an application that was designed to help you learn a piece of music. The app can adjust the speed and the pitch of the song.
When you load a file, three different panes and a player will come up. The player lets you control the playback of the file (play, pause, stop, etc). There is an information pane that displays information about your song, like title, artist, duration, file size and format. The bottom pane lets you loop a selection of the song that is loaded. This becomes particularly useful after you have adjusted the speed of a song. If you want to systematically learn the song part by part, you can loop parts of it in a slow speed. I don't think there is a better way to learn a song than that.
In short, if you want to learn to play a song, 33 RPM has nice tools that can help you with that task. The trial version lets you test the app fully before you have to buy it.
Pros
- Detailed info display
- Automated track processing
- Precise speed adjustment
Cons
- Lack of advanced editing options