The quality of these tracks is amazing. I recently purchased another 35 songs. I play tenor and alto saxophones. No other site gives you the pdf’s as well as the mp3’s. This year I purchased a Roland AE 10 wind synth. I have added it to the performance mix and the reactions are extremely positive. I have taken 16 of the best sounds on the synth and pitched them all in Concert Bb. That simplifies things. La Vie. En Rose on a synth violin is just so awesome!