Just a tip..
Appreciate the brilliant tip, but the new lilv now depends on new package sratom which currently fails the test suite in i686 (x86_64 is fine - which is where you were successful). Seeing as you are so interested, qtractor is under review (bug 797418, is minus MP3 support - not the rpmfusion package which is built against slv2) and is able to be built against the current versions of suil/lilv residing in f16. The current release of qtractor was rleased before these latest lv2/suil/lilv releases in any case so the point is moot. Feel free to request the rpmfusion qtracor package be built against suil/lilv