KeyBud 1.2 for Mac could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The software relates to 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. This free Mac application was originally created by Cem Olcay.
From the developer:
KeyBud is a music theory application for students, composers, and music enthusiasts. You can plug your favorite MIDI instrument, open your favorite DAW or any music composing application, fire up KeyBud, and just play your tunes. It detects the plugged MIDI instrument automatically and shows your playing notes in its virtual piano view, as well as the chords you are playing.
You may want to check out more software for Mac, such as Dolce Music Flash Cards, Learn To Draw or Sibelius 6 Student, which might be similar to KeyBud.