I never know how many soundtracks I have, because I file them by genre. So, an outer space soundtrack goes in the outer space section (with both soundtracks and non-soundtracks), a jazz soundtrack typically goes in the private eye/spy section (with both soundtracks and non-soundtracks), etc. I may have a specific composer or artist filed in 5 or 6 different places, depending on the music. We have thousands of LPs and CDs.