Musition 4 4.0 for Mac was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The actual developer of this software for Mac is Rising Software. Musition 4 for Mac is included in Education Tools. 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.
From the developer:
Musition is a complete music theory and musicianship package, suitable for students of all ages. Interactive drill based teaching makes learning music theory fundamentals fun and easy!
Complete with 34 topics, a clean and simple interface and sophisticated yet easy to use record keeping features, Musition is the ultimate music theory tuition tool for your home or your classroom!
You may want to check out more software for Mac, such as Sibelius 6 Student, PianoRoll or dvcUniversity, which might be similar to Musition 4.