- Jean-Philippe Rameau: His Life and Work by Cuthbert Girdlestone
This is the brilliant and incredibly influential 18th Century composer & music theorist Jean-Philippe Rameau's definitive biography and critical study of his extensive body of work. I loved every page of this and read it while listening to the various pieces referenced in the book. It is meticulously researched, with amazing detail including the notes (and lyrics, where appropriate) of the pieces discussed in each chapter.
Rameau is the greatest musician in the history of the world whom you have never heard of. He was a contemporary of J.S. Bach (although they never met) and a master of counterpoint (i.e. where different instruments play equally important but different melodies that complement each other) just like Bach. is a beautiful example of Rameau's contrapuntal music.
Rameau is not just a brilliant musician and composer but also arguably the greatest musical theorist ever. His book Treatise On Harmony literally lay down the rules of what we call harmony in music, explaining how AND WHY certain notes come together to form chords that our ears find pleasing. His findings are still taught in music academies today and are used by every songwriter from The Beatles to Iron Maiden.
I was already a fan of Rameau before reading this book as some of you might remember but that was initially through his keyboard works which I had started to try playing on the piano, and I had also started to marvel at his ensemble stuff such as and . This book introduced me to his vocal works... and Oh My Frigging God they are beautiful 
I had never willingly listened to an opera for more than 5 minutes before in my life, but now I realise that is because all I've known as 'opera' was the simpler 'Pop' stuff like Mozart. I never knew that it was possible to make such beautiful music that touches both you heart and mind, fills you with longing, and keeps you up at night with the melodies racing in your head. I didn't know that opera lyrics could be stuff other than ridiculous flippant crap 
Since you so want to know
I will take a moment here to share some of the beautiful music that I have discovered while reading this book. I haven't been able to stop listening to this stuff in the past two weeks.
Start listening from 15:20.
Start listening from 31:30 to 37:50.
Cesse cruelle amour
Ah, que votre sort est charmant
Ah que votre sort est charmant / L'amour même a formé vos chaines
(Your fate is so sweet (that) your chains are made of love itself)
In case any of you might one day want to read this book, my one criticism would be that the author quite clearly assumes that the reader will be fluent in French. There area quite a few quotes from Rameau's written works in French and lyrics from his operas that are not translated but commented on.