In 1947 Britain staged a jubilee in London honoring the king by showcasing musicians from every corner of the still intact and vast British Empire.
When it came time for the sitar player from India to perform the poor guy hadnt had time to tune his instrument. So he frantically had to twist and adjust the tuning nobs on the neck for...the X number of main strings, and Y number of sympathetic strings on his instrument. Had to do it all in front of the audience. Ravi Shankar told the story on a talk show in the Seventies and demonstrated by twisting the nobs on his instrument. Made a (rather pleasant) bing bong bing bong sound.
Finnally the guy finnished and was poised to start actually playing...when...the audience gave him a standing ovation, and the curtain came down, and he was ushered off stage for the next act.
I once went to a concert by Amjad Ali Khan, possibly India's most famous sarod player. An organist I know was also there. His only comment on the music was "That was a lot of B flat minor."