Lesson, Level 3A, Basic Piano Adventures Level 3A introduces 3/8 and 6/8 time signatures and the triplet. Students learn the chromatic scale, the 7th, one-octave arpeggios, and explore the key of D major. Contents include: Amazing Grace, Campbells are Coming, Cool Walkin' Bass, Cossak Ride, Echoes of the Harp, Eine Kleine Nachtmusik, Ice Dancing, Joshua Fought the Battle of Jericho, Land of the Silver Birch, Looking-Glass River, Lunar Eclipse, March Slav, and more.