The "slash" in discographies

[Big Wheel]

I'm doing some research, and I was looking through this Blakey discography when I noticed that certain players have annotations next to their names if they only play on some of the tunes at a session. Sometimes it's a comma, sometimes it's a hyphen, and sometimes it's a slash. For example,

Jackie McLean (as- 1, 2, 4), Lee Morgan (tpt- 4/7).

Does this mean that Lee plays on tracks 4 through 7--4, 5, 6, and 7? Or is it something else?

[JSngry]

It means what you think it does, that Lee plays on tracks 4 through 7. A hyphen could also be used.

[Big Wheel]

Ok, got another question then: The session I'm researching is Donald Byrd's Byrd's Eye View, on Transition. The Blakey discography says that Joe Gordon plays on tracks 3-6. But the AMG review says that Gordon's only on two tracks on this session. Who's right?

[brownie]

The original booklet to that rare Transition original (one of my treasures) lists Joe Gordon as playing on the following tracks:

- Doug's Blues (Gordon plays the second oif the three trumpet solos),

- El Sino (Byrd solos first, then Gordon, same order for the following shorter trumpet solos),

- Hank's Tune (Gordon has the first trumpet solo).

That's a superb date! Have enjoyed it this for decades.