I can't believe this is only the 3rd review written on this 2-fer, blast from the past.
So you know, the 'Byrd' part of the name is due to these guys being understudies of the cross-over jazz trumpeter, Donald Byrd.
The Blackbyrds take the Donald Byrd direction of the mid seventies and make it chart and ear friendly.
As much as I love this stuff, it tends to suffer from that mid to late 70's sound from time to time. The stringy/orchestral bordering on disco sound.
That being said, Rock Creek Park and BlackByrd's Theme are 2 of the thickest funk jams I know.
They had a limited run, but you need to put these boys in the Kool and the Gang, Tower of Power range without apology.