Please leave -6dB of headroom on the master output.
44.1kHz sample rate (minimum) / 16 or 24bit (24bit preferred).
No limiters or compressors on the master bus.
This will affect the dynamics and flexibility we have to provide you with the best possible sounding final master.
Please send one or two reference tracks (WAV or 320 MP3). This can be a favourite track in the genre you want your music to positioned, and/or one you sonically and aesthetically like the sound of.
Delivery via Dropbox or wetransfer to firstname.lastname@example.org
Thanks & have fun!