you could also play the Eb on a tuned-down open E-string, and then the F on second fret, that sounds really "phat." or you could cheat and buy a 5-string. whatever melts your butter. keep on skanking.
Tabs bass - SLACKERS Tin Tin Deo Chordsound to play your music, study scales, positions for guitar, search, manage, request and send chords, lyrics and sheet music