(Bass Play-Along). The Bass Play-Along series will help you play your favorites songs quickly and easily. Just follow the tab, listen to the audio to hear how the bass should sound, and then play along using the separate, sound-alike backing tracks! Melody and lyrics are also included in case you want to sing, or to simply help you follow along. Features 8 Nirvana favorites: All Apologies * Come as You Are * Dumb * Heart Shaped Box * In Bloom * Lithium * Rape Me * Smells like Teen Spirit. Audio is accessed online using the unique code inside the book and can be streamed or downloaded. The audio files 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.