If I didn't already know of Rick Derringer from Edgar & Johnny Winter albums I have, I likely would not have bought this album.  The cover is so bad it gave me a very negative first impression.  It is actually a fairly good classic rock album and contains his big hit Rock and Roll Hoochie Koo first recorded on Johnny Winter and (1970).  All American Boy is Derringers debut solo album and was released in October of  '73.  My pick from this album is Uncomplicated:

Shilo is a compilation album of Neil Diamonds best songs recorded during his time with Bang Records.  Released in 1970, it became his best selling album with that label.  Here is his song, I'm a Believer, which is probably more familiar as a hit by the Monkees in '67 or more recently the version by Smash Mouth off the Shrek soundtrack.

Perhaps one of the earlier recordings of what today we would call world music, Tap Root Manuscript was a very experimental record for its day, with a side long suite The African Trilogy. From that suite here is
I Am The Lion:

Originally released in 1972 by Fiesta Records in France, Atlantic licenced this album for release on it's own label in '73.  The title track Soul Makossa (meaning dance) went to 35 on the top 100 that year.
The song was so popular that at one point in '73 there were 9 different versions of the song on the US Billboard Hot 100 chart at the same time!  Manu Dibango is a saxophone & vibraphone player originally from Cameroon, and plays a blend of  jazz, funk and traditional African music.  "When we talk together with my musicians we call our music Afro-something. I am told that in the United States our music is now called Black Ivory Soul" (M. Dibango, album cover '72) .  Here is that famous song some say may be the first Disco album: