11.27.20 RhythmLock for iOS is released! RhythmLock is a rhythm game designed to help develop rhythmic conception skills. It gives the player real-time feedback on their beat placement, scores them on how accurate their timing is, and gives them a break-down of their rhythm tendecies at the end of every round. It is a fun way to visualize and learn rhythmic notation and rhythmic feel. Download it today and try it for yourself! www.rhythmlock.com

4.29.20 last summer, los angeles-based singer-songwriter stevie weinstein-foner played a show in boston and visited colin's studio where they recorded one of his songs together. click here to watch the video.

4.26.20 colin continues his sunday streaming series on his youtube channel inside out guitar at 1pm est today. click this text for the direct link.

4.19.20 colin is launching a live stream lesson series on his youtube channel inside out guitar today at 4pm est. click this text to watch!

3.16.20 due to the covid-19 pandemic, colin's spring shows are being tentatively rescheduled for the fall. click on the tour page for details.

1.13.20 colin was given the prestigious distinguished faculty award at berklee college of music today! click over to his instagram page @colinsappofficial to read his written thank you.

8.19.19 colin gave a clinic at berklee college of music with david davidson of revocation for the 2019 summer guitar sessions. the event was filmed and is posted on YouTube. click here to watch the full presentation.

5.9.19 colin is pleased to announce that he has partnered with GHS Strings!

2.5.19 spring shows are now posted on the site. click on the tour page for details.

1.31.19 happy new year! colin will be doing a live-in-the-studio acoustic performance with the backstreet boys on siriusxm's hits 1 morning mash up celebrity sessions at 8am today. be sure to tune in!