Charles Mingus' classic 1959 album 'Mingus Ah Um' available on 180g vinyl LP + bonus CD of the album with bonus tracks.
"First let's put your minds at ease about that weird title: it's a corruption of an imaginary Latin declension (mingus-minga-mingum). Don't ask why. It seems to me that Mingus has now completely found himself, found a personal and vital direction. This is a consistently exciting and stimulating set. Mingus has something to say, knows how and through whom to say it, and it is all stated with communicative authority." DownBeat, Leonard Feather