never worked with us before?

let us hear from you 

Contact us with a short message and link to your mix. A high quality mp3 or SoundCloud link is sufficient.

fix it in the mix

We’ll get back to you via email with feedback on how to improve your mix regarding the mastering stage, whether or not you decide to work with us.

value our feedback 

In return we appreciate a € 5 donation fee. Use the PayPal button on this page.

Feel free to send in your mix and ask for our opinion. That’s our second opinion service! 

please note

When you use the second opinion service, the amount you donated is deducted from your first bill when having your track mastered at sidamosae.

If you're confident in us, contact us for mastering your music!