George Martin was a ‘musical genius’ by those who paid tribute to the 'fifth Beatle'

Beatles producer, George Martin, who has died aged 90, has been described as “visionary” and “a musical genius”.

Sean Ono Lennon, son of John and Yoko, posted a picture of Sir George on Instagram, with the caption: “R.I.P. George Martin. I’m so gutted I don’t have many words. Thinking of Judy and Giles and family. Love Always, Sean.”

Singer Lenny Kravitz wrote on Twitter: “The legends are really going home! Visionary producer of The Beatles, George Martin (1926-2016).”

The legends are really going home! Visionary producer of #TheBeatles, George Martin (1926-2016). pic.twitter.com/X8sVf9iNQ7

— Lenny Kravitz (@LennyKravitz) March 9, 2016

Liam Gallagher wrote simply: “Sir George Martin RIP LG x”

Sir George Martin RIP LG x

— Liam Gallagher (@liamgallagher) March 9, 2016

Roger Moore, who starred as James Bond, wrote on Twitter: “How very sad to wake to the news Sir George Martin has left us. He made my first Bond film sound brilliant!” That film was Live and Let Die, in 1973, with a score by Sir George.

How very sad to wake to the news Sir George Martin has left us. He made my first Bond film sound brilliant!

— Sir Roger Moore (Legacy) (@sirrogermoore) March 9, 2016

Producer Mark Ronson wrote: “Thank you, Sir George Martin: the greatest British record producer of all time. We will never stop living in the world you helped create.”

Thank you Sir George Martin: the greatest British record producer of all time. We will never stop living in the world you helped create.

— Mark Ronson (@MarkRonson) March 9, 2016

Singer Boy George tweeted: “Sir George Martin. Gentleman and legend. R.I.P.”

Sir George Martin. Gentleman and legend. R.I.P.

— Boy George (@BoyGeorge) March 9, 2016

Neil Portnow, president and chief executive of the Recording Academy, said: “We are very saddened to learn about the passing of six-time Grammy Award winner and Trustees Award recipient, Sir George Martin ... he was one of the most innovative producers of all time and his impact on music is unparalleled."

Musician Quincy Jones wrote: “RIP to my musical brother, George Martin. “We were friends since 1964, & I am so thankful 4 that gift. Bless u & your precious posse 4ever.”

RIP to my musical brother George Martin. We were friends since 1964, & I am so thankful 4 that gift. Bless u & your precious posse 4ever.❤️Q

— Quincy Jones (@QuincyDJones) March 9, 2016

Spandau Ballet star, Gary Kemp, shared with his 53,000 Twitter followers: “George Martin was the Edmund Hillary of music — adventurer, explorer, discovering routes for pop music we have all gratefully trod behind in. He was also a beautiful, gentle man I had the pleasure of chatting to on many occasions. A Giant.”

George Martin was the Edmund Hillary of music - adventurer, explorer, discovering routes for pop music we have all gratefully trod behind in

— Gary Kemp (@garyjkemp) March 9, 2016

... He was also a beautiful, gentle man I had the pleasure of chatting to on many occasions. A Giant.

— Gary Kemp (@garyjkemp) March 9, 2016

British musician, Cat Stevens, who now goes by the name of Yusuf Islam, wrote on Twitter: “Sad to hear George Martin passed away. Most influential music producer & a man of good character. Rest in Peace. Condolences to his family.”

Sad to hear George Martin passed away. Most influential music producer & a man of good character. Rest in Peace. Condolences to his family

— Yusuf / Cat Stevens (@YusufCatStevens) March 9, 2016

Singer and producer, Midge Ure, told ITV’s Good Morning Britain: “Personally, he was one of the most wonderful people I’d ever met. I described him many times, in the past, as a cross between your favourite school teacher and a father. He was such a loving, wonderful guy, and incredibly, incredibly musically knowledgeable”.