Composed by Bedrich Smetana after he became totally deaf in 1879. I think that he must have really loved the river he is writing about. Paul Stefan wrote " Smetana's music sings to us to-day of Bohemia of old--it's woods and cultivated plains, it's villages, it's romantic hills and old legends, it's great past and even it's future." I have had a go at playing a tiny bit of it on my Yamaha PSR 970.
The MP3 can be downloaded from here.
https://app.box.com/s/fkkh0qqdc8e4g4m2tm3wkisjvd6u2wwv
JT.