V2.6 includes some changes on processing credits fields for filling lyricist, composer, conductor and involved people fields. I've made some changes in the mapping according to discogs
credits guidelines and
credits definitions. Here's the new mapping:
Lyricist roles: "Lyrics By", "Words By", "Songwriter"
Conductor role: "Conductor"
Composer roles: "Written-By", "Written By", "Composed By", "Score"
All others are included into involved people.
Note that "Written-By", "Written By" used to be mapped to Lyricists but now they map to composer. There's a
discussion about this on discogs forums so I'm still not sure if it should map to composer since Written-by mean song writer or music composer or both.
Let me know your ideas about this.