The elderly residents of Lealholme have heard a lot of tunes in their lifetimes.
But there was respectful silence at a special concert when virtuoso guitarist Slava Grigoryan announced that he would play a 300-year-old composition by Bach.
The classical melody is much older than even the oldest aged-home resident.
Mr Grigoryan, Jeff Lang and Kelly Menhennett performed to about 55 residents as part of the Resonance touring show by the Adelaide Guitar Festival.
Mr Grigoryan, who was born in Kazakhstan, said the legendary Bach was one of his all-time favourite composers.
"The music is complex and rich. It is passionate ... but there is also a mathematical complexion to his music ... he was an absolute genius way beyond his time," he said.
He said he also loved the sounds of 1960-70s band The Beatles.
"They captured the essence of song-writing as well as anyone at the top of the field ever has," he said.
"Their music was well-structured. My brother and I used to play Blackbird.
"There is a special quality that the Beatles had harmonically that makes their music so interesting."
Jeff Lang played slide-guitar and sang tunes including With You I Can Throw Away The Pills, a performance that was enthusiastically received.
Kelly Menhennett was given the honour of a dance performance by her relative Raelene Benton who stepped up from the audience.
Ms Benton (nee Johns) said the music was "beautiful" and she loved dancing.
Ms Menhennett said it was lovely to be part of the concert.
Her grandmother Ivy Menhennet (nee Johns) grew up at Clements Gap and met her husband-to-be at local dances.
"I played Tennessee Waltz which was Ivy's favourite song," she said.
Ms Menhennett, originally of Barmera, first performed in the dining room of a country pub.
Since then, she has won awards for her songwriting, released two albums and performed at national and international festivals.
The home's residential services manager, Shirley Waldhuter, said nearly everyone enjoyed music and it was able to "touch people".
"When we have a good music program here, it is something that residents rarely get the opportunity to see," she said.
"It is wonderful that we are able to bring the artists here and they want to come.
"It is the second year that we have had a guitar festival and both times the room has been full."