This is hands-down my favorite album of the 1980's. It is categorized by some as M-BASE, but really transcends that genre.
One of its major achievements is the constantly moving beat - Cassandra's vocal lines challenge what the other musicians are doing, and moves the beat in odd directions. This is similar to what Miles Davis did in the Plugged Nickel sessions from the 60's. It is the opposite of Steve Coleman's boring M-BASE albums from the 1990's - in those albums the beat is just a rotating cycle that is never challenged.
The album also transcends M-BASE because it uses various kinds of beat. Some of the songs swing HEAVILY (especially "You Belong to You" and "Let's Face the Music and Dance"), in a manner that is reminiscent of Wilson's excellent album "Blue Skies", with some dissonant horns added between the verses. Others have funky passages.
When I free-associate concepts with this album, two things come into my head. The first is 90's neo-swing, perhaps because of the growling trumpet of Graham Haynes played on top of the energy-filled electric instruments. The other is "show tunes" - although I admit I don't know much about the music of theater, this album sounds like it would be at home there.
And I haven't even mentioned the beauty of the melodies yet. My favorite melody is Henry Threadgill's "Apricots on Their Wings." This song keeps coming into my head, replacing all the Wayne Shorter tunes that are constantly playing in my head. Wilson's "You Belong to You" is also excellent. And some of the slower tunes, such as "Days Aweigh," also have intriguing melodies.
Finally, Wilson's voice does many odd things that perk my attention. I've listened to some of Wilson's post-1994 albums, and I think her voice is most unique in her earlier albums.
So basically, if you're a fan of advanced jazz, you should get this album right away.