ituneslibrary-management
I have an album that contains many songs, some of which are performed by several artists.
I do want all the songs to appear under one album in the albums, and when I am browsing by artists, so under each artist I should see this album and the songs he participated.
In general, you're already using the correct way to sort by album name. Click "Music" then, "Albums"
The problem you're seeing with compilations being shown multiple times for each artist has always been a problem even in older versions of iTunes. In order to fix this, you'll need to modify the Album Artist field in the track info.
To do this, press ⌘+i (Ctrl+i on Windows), then put “VA” into the Album Artist field (Note: using “Various Artists” or any matching string should also work). You can select multiple tracks with ⌘+Click (Ctrl+Click on Windows) to edit many tracks on the same compilation at a time.
You've pretty much figured it out. Just pick a consistent description to use for the Album Artist or Sort Artist and your albums will group together, while being able to preserve the artist for a specific track. The de facto standard for this seems to be calling it "Various Artists", but there's no reason you can't do whatever suits you, whether that's "Soundtracks" or a specific title for each individual soundtrack album.
Best Answer
There is no easy way to do this, you only have one artist field per track.
What you could do is listing the name of all artists in the artist field and then create smart playlists with rules for "Artist contains".