A willing audience
It seems to me that, when I was young, older people genuinely enjoyed a live musical performance of the amateur sort. I grew up in the country, so I'm talking about older country folks. I would include people the age of my parents (born in the 1920s) in this group of music appreciators as well as the elders of the community who were born as far back as the 1880s and 1890s.
Those older people valued homegrown musical talent. They loved to hear someone play a toe-tapping tune on the piano, or the guitar, or the accordion, or the fiddle. They admired someone who could stand in front of a group and sing a song. They were thrilled to hear a trio or a quartet sing in harmony. Music was a treat for them!
For us today, music of a thousand genres is available 24/7. We are sated with music. If we don't hear the music we like on the radio, it's available on the television, internet, CDs or ITunes. We pipe it into our brains with our headsets. We don't need to make our own music in our parlors-- and that surely means that a lot of modest musical talent is never noticed, developed, or appreciated.