I have huge SXSW compilation albums. They clutter Artists view. Clementine has an elegant solution for this — compilations are stored under Various Artists. How can I solve this in Banshee?
Select your songs using shift+click then left click, choose edit track information, and choose "Various artists" for your songs. Then click the icon next to the artist.
Keep in mind, if you have the option to save metadata to files enabled, that your files will have "Various Artists" as the artists! So disable this option in preferences (unless this is what you want).