4.5 - Submitting lineup and artist info
Make sure the artist isn't already featured, before adding a new one! Multiple profiles for the same artist are a pain in the ass.
If a musician has been in the band for more than one period of time (departed and then came back), please add him twice, for both periods.
If there was a lineup change and a long break until a spot was filled, read up on old news whether guests or tour musicians jumped in during studio sessions (guests) or gigs (tour musicians).
If in doubt whether a musician was a 'session' or 'guest' one, Guest musicians are usually rather famous persons (most often, vocalists) from other bands, brought in for a couple of songs. Session musicians usually play on all/most album songs, and fill in for a missing instrument.
Nicknames and pseudonyms should be entered in this way - Alexi "Wildchild" Laiho.
Additional information can be submitted in artist profiles - picture, biography, website, birth date.
If the musician has other bands or projects as well, don't hesitate to add those - go his profile and click 'Add bands'. If you don't know when exactly he joined or left those, put 0000 as the year.