I was listening to this great track and I suddenly noticed a voice I could not recognize immediately. Listen to the next lines :
''Come come on the time is right
This evil man will fight
I told you once before ''
You can hear Freddie's voice clearly but there is another high voice.
Who is that ?
Isn't it Freddie overdubbed? A low part and a high part? At that time he could hit some very high notes. I don't think it's Roger, I believe all voices are just Freddie.
definitely freddie
i think nearly all the vocals on that song are his
if you listen to BBC version (it's played live to a backing track) - you can hear him reach those notes
Vocals:
Freddie's lead-vocals are in the middle. They got some reverb (in stereo).
From 1:11 on there's a second track for harmonies, doubling and additional parts.
At 4:03 there's an additional track on the right side for another harmony.
This track does also the extremely high-pitched vocal extravaganza at 5:08, which imitates the guitar-solo (right channel). This is also done by Freddie and sounds great. The ''Ahh-ahh'' backing vocals in the chorus are two two-part harmonies, consisting of two voices by Freddie on the left side and two voices by Roger on the right side.
Info provided by Philipp