man, it's an endless number of 70's albums to check out from r&b/soul to funk to rock and jazz
far too many to name so i'll just name different artists, you can't really go wrong with the albums in that period. some better than others but all worthy of a listen
sly and the family stone's albums
bobby womack
james brown
parliament/funkadelic
thin lizzy
santana
curtis mayfield
barry white
shuggie otis
marvin gaye
fleetwood mac
pink floyd
al green
rufus/chaka khan
the allman brothers
the isley brother's albums
hendrix
miles davis
elton john
reo speedwagon