Hi -- JRiver can do what you want and IMHO does it better than anything out there.
In the mean time, note that the principal separator which allows you to have more than one artist per track is the semicolon. So if "Rolling Stones; Mick Taylor" is entered in the ARTIST field you will be able to break them out (with another trick which I or someone else can show you later. Bear in mind that the ALBUMARTIST field is where most views will be grouped around -- this is a choice to be made which should be consistant with subsequent tagging. But in your example its pretty simple - The AlbumArtist would be either Rolling Stones OR Mitch Taylor. Searching on the artist field would bring up all of Mitch Taylor and the Stones albums.
So for the albumartist tag you have some choices --- with rock its a little less important, but with Jazz this can get messy - so I use the soloist field. Sometimes the side men are as interesting to find as the leader/group name
As an Example ...
AlbumArtist : Sonny Rollins
Artist : Sonny Rollins
John Coltrane
Soloists:
Sonny Rollins - Sax (Tenor)
John Coltrane - Sax (Tenor)
Paul Chambers - Bass
Philly Joe Jones - Drums
Red Garland - Piano
so if I search for John Coltrane I will get all his albums; all albums he appeared as a primary artist and all albums he played on as part of a group.
So if you do this with the Stones and Mick Taylor, your going to have to do it for Brian Jones and maybe you get a Bill Wyman solo album etc.
The key thing is to think it through a bit so its consistent, then you can get anything you want.
I can post a how-to in a screen shot if you give me some feedback how you want to organize your collection... basically you need to create or modify fields to be list fields (delimited by the semicolon) rather than a text field. .. This is also very handy to tag because it gives you list boxes, removing the ";" from view. So do you need to split artists? ... yes. Ok, how about albumartists and soloists or anything else??
It sounds complicated but afterwards you really have a lot of power under the hood to organize and reorganize if you change your mind.
welcome btw