artist display format

[antonmb]

I finally ended up with this:

Artist.displayFormat={$artist^^^/$composer^ - ^ (composer)^/$soloists^; ^ (soloist)^/$orchestra^; ^^, $conductor^; ^ (conductor)}

I still get the dash " - " in front of the composer when there's no artist, but it looks less out of place than the semicolon did, and works just fine otherwise.