Multi-disc DiscSubtitle sorting

[simoncn]

It is not "in the works" to the extent that I am currently writing code to implement it. The first and most important step is to get the design right and I think we are quite a long way through that.

As a temporary workaround for this album, you could use the GROUP tag. Each city/date could be tagged as a disc with DISCNUMBER and each original disc within that city/date could be tagged as a GROUP. The track numbers for each city/group would run from 1..n through all the original discs for the city/group. For example:

July 3, 1966 – Fillmore Auditorium, San Francisco, California

Disc 1

"Nobody's Fault But Mine" (traditional, arranged by Grateful Dead) – 1:09
DISCNUMBER=1, DISCSUBTITLE=July 3, 1966 – Fillmore Auditorium, San Francisco, California, GROUP=Disc 1, TRACKNUMBER=1
....
"Keep Rolling By" (traditional, arranged by Grateful Dead) – 4:35
DISCNUMBER=1, DISCSUBTITLE=July 3, 1966 – Fillmore Auditorium, San Francisco, California, GROUP=Disc 1, TRACKNUMBER=9

Disc 2

"New, New Minglewood Blues" (traditional, arranged by Grateful Dead) – 3:54
DISCNUMBER=1, DISCSUBTITLE=July 3, 1966 – Fillmore Auditorium, San Francisco, California, GROUP=Disc 2, TRACKNUMBER=10
....
"In the Midnight Hour" (Steve Cropper, Wilson Pickett) – 15:50
DISCNUMBER=1, DISCSUBTITLE=July 3, 1966 – Fillmore Auditorium, San Francisco, California, GROUP=Disc 2, TRACKNUMBER=19

November 10, 1967 – Shrine Auditorium, Los Angeles, California

Disc 1

"Viola Lee Blues" (Lewis) – 15:58
DISCNUMBER=2, DISCSUBTITLE=November 10, 1967 – Shrine Auditorium, Los Angeles, California, GROUP=Disc 1, TRACKNUMBER=1

..etc.