If anyone deserved the moniker ‘The Fifth Beatle’, George Martin would have been a front runner. The legendary producer signed the Fab Four to the Parlophone when Decca Records rejected them and would go on to produce all their seminal records, playing a significant role in its development.

Well, Billboard has just reported that Martin passed away at 90 years old today. A sad day for music, in a year that has had too many of those moments already.

Rest in peace, Mr. Martin.