There is some of my tracks on Europamp3.org.

So feel free to buy in two different ways :

15 Titres ( 0.44 €) = 6.60 Euros = 9.90 CHF

1 Titres ( 0.64 €) = 0.64 Euros = 1.00 CHF

I don't have 15 tracks right now, only five. But you can buy them several times !