Harmonic Websites
tunebat.com
Find key and BPM information for any song. Explore an extensive database of 40+ million tracks with data on release date, label, energy, happiness, and...
25,842 
$ 519,840.00
iransys.ir
مرکز شبیه سازی و آموزش نرم افزار انسیس ایران IRAN Simulation and Training By ANSYS FEM Software مجری پروژهای پژوهشی، صنعتی و آموزش تخصصی نرم افزار اجزاء محدود ANSYS شامل...
729,154 $ 1,680.00
basicmusictheory.com
Music theory for notes, intervals, scales, modes, chords, circle of 5ths, with midi and mp3 audio, piano, treble and bass clef diagrams in all keys
129,762 $ 85,200.00