Typical multitrack breakdowns include 9–13 primary channels (Drum Kit, Bass, Rhythm/Lead/Distorted Guitars, Piano, and multiple Vocal layers). The Unheard 'Raw Sessions' - QueenOnline.com - News
The lead vocal track is often cited by engineers as a "perfect" take. When isolated, you can hear the raw power and theatricality of Mercury's performance: Queen - We Are The Champions -Multitrack-
Freddie Mercury’s vocals are the centerpiece, but the multitracks highlight the complex "Queen Sound" created through layering. Queen - We Are The Champions -Multitrack-