Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: Back to good old hard rock!

You can definitely tell that Brian May had a large influence on the content of this album - it is filled with his trademark hard-rock style guitar. This album is great! Radio Ga Ga is a brilliant pop song to star the album which then explodes into the heavy metal of Tear It Up. Hard Life is a lovely gently song by Freddie, followed by the rock 'n' roll fun of Man On The Prowl. Then comes the album's best song, Machines. This is an incredible hard-edged rock number with fun lyrics. Following that is Queen's hit I Want To Break Free with their famous hilarious video. Keep Passing The Open Windows is a good pop song with leanings towards full-on rock. Hammer To Fall is their excellent famous stadium song with Brian May's unforgettable riff. Finishing the album is the gentle Is This The World We Created, a beautiful solo acoustic guitar song. Overall, there isn't one bad song on this album. This was the first Queen album I ever heard and it made them my favourite band!