Db, Ab, Db, Gb, Bb, Eb. Some ppl post the tuning as Drop C (normal system tuning) or D, but im convinced at for this song, its Drop Db. All accurate chords, adapted for standard tuning. View official tab. System Of A Down - Byob (Official) official by System of a Down with free online tab player, speed control and loop. Check out the tab » 2 contributors total, last edit on Sep 08, 2018. Added on June 13, 2017 We have an official Byob tab made by UG professional guitarists. They¡¦re other single from their twin albums Cigaro seems to be same tuning. Author Andrew Zara 41,553. We have an official Byob tab made by UG professional guitarists. Tuning: Db Ab Db Gb Bb Eb. Correct version.