The Jennifer Linn Series features carefully leveled collections of either popular music arrangements or original compositions. The pieces or songs in each book are placed in a progressive order so students can learn new skills as they advance through the book. Written for piano students of all ages, there are five levels in the series: Early Bird (Pre-Staff), Easy Elementary, Elementary+, Easy Intermediate, Intermediate+. The Fun Songs for Kids collection includes 12 early bird level piano solos with teacher duets: Attic Stairs · Backpack Blues · The Bear Went over the Mountain · Bingo · Fading Moon · Hush Little Baby · Jasmine Flower · Kum Ba Yah · Mountain Train · Secret Cave · Song of the Buffalo · Volga Boat Song.