(Bass Builders). This excellent book in our Bass Builders series features 101 authentic hip-hop bass lines spanning 25 years of urban music and covering East Coast, West Coast and Down South styles. Includes 98 full-demo tracks performed by acclaimed bassist and author Josquin des Pres and the book includes standard notation and tab. The price of this book includes a unique code that provides access to audio tracks online for download or streaming. The tracks include PLAYBACK+, a multi-functional audio player that allows you to slow down audio without changing pitch, set loop points, change keys, and pan left or right available exclusively from Hal Leonard.