Checkmark in Office Products

 Font: Wingding, ALT 0525: ✓

Note that the Unicode for that to be able to see it in HTML is &#x2713

Note that the Blogger editor gets this messed up if you switch between HTML view and Compose View. This post was written stricly in HTML view

Circle of 5ths

 Examples using Circle of 5ths https://www.youtube.com/watch?v=-DQJmicTFGQ

Most Elegant Key Change

Take Five