It’s a fascinating question!
First off, it’s important to consider that at this time, if you wanted to hear music, you had to sing/play it yourself, pay someone to sing/play it for you or get a friend to sing/play it. From our modern perspective, it’s hard to imagine going through a day without hearing some music, somewhere, even if it’s just the asshole on the subway with his iPod on too loud.
There wouldn’t have been the huge difference in instrumentation between ‘serious’ music and ‘popular’ music that we have today. The tavern that had music would probably have had a couple of fiddle players; the guy busking in the town square would probably have been playing a violin, and the orchestra at court was centered around having violins.
Not at all like today, when the tavern that has ‘live’ music is a special thing, and there are specific instruments associated with particular styles of music. For instance, if there’s a saxophone playing, the music is much more likely to be jazz or rock - we don’t really associate sax with classical music, or folk.
Also, don’t forget the church - many, many more people went to church in 18th and 19th century society, and even the poorest churches had choirs. Most of them had organs, and some highly respected composers made their entire careers around being church musicians. Look at J. S. Bach - he was not writing for a huge cathedral, he wrote for a medium sized church in a fairly obscure town in Saxony. Slightly different circumstances, and he could have passed into total obscurity. When you went to mass, you would often hear a musical setting - not necessarily as grand as the Beethoven ‘Missa Solemnis’, but something serious and written to the best of the composer’s ability in order to glorify God.
I would venture to say that we modern people have the widest diversity between musical styles happening within what we would consider the same culture of all time. Certainly, we have access to more music than Franz Joseph would ever have dreamed possible.