Ok time for first comment. This album is fantastic even if my first thought was 'nice female vocals' but you know... it was long time ago. It really sounds like a proto-Rush to me.

Its album when you suppose think somehow women and such music in that time, we say Blues Pills, but wait a sec, its man John Burke Shelley
He has agirly vocals IMO and cover song was awesome,

For me it's one of the best hard rock，early heavy metal albums, Budgie's groundbreaking presence on this song is impressive, but they don't get the credit they deserve, pepole usually rarely mentioned, They are also far less well-known than other bands such as the Hard Rock Big 3. "Parents" is one of my favorite song, and in the second half of the song they use the guitar to make some kind of sound，jast like a hawk vultures circling in the sky, is so amazing. It is worth mentioning that last year, an excellent Chinese band imitated this kind of guitar sound in their album, and the song was "太史公之缢" in the 沉默演讲（Silent Speech）'s album 《不稳定的规律/有序混沌》. In my opinion Budgie had the best lineup of the era, strong guitar and drums, great vocals, I feel sad about Burke Shelley's death, RIP.

Geddy Lee from Rush said that Budgie was one of his main influences, and apparently Budgie was also a big influence on Metallica too, according to James Hetfield, which shows just how important this band truly was.

I've noticed that Steve Harris uses the same base line on "Phantom Of The Opera", than on the song "You're The Biggest Thing Since Powdered Milk", so there's another influence this album has had on another great musician.