Play Guitar: Don J MacLean’s Guitar Lessons in 50 Countries and Growing! Posted on December 27, 2009 by Don J MacLeanDecember 28, 2009 I’m really excited! I checked my records and discovered that I hit a new milestone. Tonight in 50 countries around the world, people play guitar using the methods outlined in my guitar lessons. My newest student is learning to play guitar in beautiful Barbados.