Bartz is on five of the 6 tracks, which are sextet with Lee+Freddie. He wrote 'Freedom Monday', but Blakey put his name on it. Also the title track is credited to both trumpeters, but the copyright is Freddie only.
Lucky is the sole horn on 'Spot Session', which is from a different date.
The tune 'Slowly But Surely' is from the same date as the sextet tracks, but was put on another LP. I bet they won't include here where it belongs.
This is currently available on iTunes. I bought it assuming it would never come out on CD. I'll stay away from those Jazztet downloads.
Bertrand.