Following the discovery of the Sonatina Symphonic Orchestra sample library, I have used some of the samples to set up a new sample based “voice” for Sonic Pi 2, and written code so that it can be played just like one of the built in synths. I have written a full article explaining how this has been done, and included as an example the first movement of one of Telemann’s Canons for two flutes.
You can hear the piece here, and read the article, which includes download details so that you can try it out on your own Sonic Pi 2 program here.
rbnrpi 
Great! Thanks for sharing! :)