in Hamburg:
https://www.classicbands.com/KlausVoormannInterview.html
Q - You actually took up bass yourself?
A - Yeah. When the band played in The Top Ten (Club), Stuart was still the bass player. It was late at night and he came up to me. I just came in the club and he said "C'mon Klaus, you play the bass tonight." And he just stuck it in my hand. At that time, in 1961, I hadn't played a note on a bass, ever in my life. It was the very first time I had the bass guitar in my hand. It was an electric bass guitar. The band said "C'mon up onstage and you play now." I said "No, no. I'm not gonna go up onstage. I've never been there in my life." So, I sat in front of the stage and we played. The first number I played was a Fats Domino number. And now, when I did this work for my CD and the DVD, I asked Paul if he could remember what song it was. He said "Oh, yeah. It was a Fats Domino number, 'I'm In Love Again'." That was the first number I ever played the bass. Paul, Ringo and I did a version on this new CD of mine.
Q - If you never played the bass before, how could you play the bass? Did the band shout down from the stage where to put your fingers?
A - Well, they didn't have to do that. I had a little guitar I was fiddlin' around (with) at home and had a little tape recorder and was fiddlin' around with that. But I never had a bass guitar in my hand. So, I just knew. It's not very difficult to play these songs. So, I immediately played it. They were "That's great, Klaus. You play it really good." That's where I got started.
Q - After that, would they then let you sit in with them more often?
A - Well, I'll tell you what. The last time Stuart played, it was about the end of the thing. After that, they didn't stay much longer and I didn't play any more. I don't know exactly how many times I played.
= new reply since forum marked as read