You asked?

How do we prepare for a recording?

The most important thing is practise, practise and practise! The more you rehearse, the greater your studio experience will be.
Make sure your gear (instruments, pedals, cables,...) works propperly. Check if your guitars need to be intonated, if you can't do this yourself then contact a professional, or contact me. I know some people who know some people... Don't forget to put new strings on your (bass) guitar and fresh drum heads on your drum, this is strongly recommended.

Is it possible to sleep over?

There are no accomodations to sleep over, but if it's really necessary we can workout something in the neighbourhood.

How long does it take to record an album?

This depends on a lot of factors: preparation, studio experience, budget,...
Every project is different and has it's own specific needs. You can record a full album in 5 days, but it might also take 10 days or more.
Taking your time to find the right sound and creating the best atmosphere can drastically improve the quailty of your recordings. So it can be worth your while not to rush things and take your time.

How long does it take to mix an album?

For a single track this can take up to 1 day.
Mixing an EP (4-5 songs) about 3 days.
A full album may take up to 5-6 days.

This is just an estimate, nothing definitive. Before we get started we'll discuss the time needed for mixing.

How much does mastering cost?

For mastering I charge 40 euro per track. However I prefer working with an external mastering engineer for mixes i have done myself. It's always good to have a pair of fresh ears laying down the finishing touches on the tracks.  I have worked with a couple of different mastering engineers in the past (Alan Douches, Tue Madsen, Jerboa, Brad Boatright, Kris Belaen, Jason Livermore, Attie Bauw, Toon de Quant,...).

Can we use the backline?

Of course, that's what it's for. But do bring your own equipment, and if possible some extra gear you can loan from your friends. It's always interesting to have some different sounds at your disposal in the studio.