Mastering
Analog mastering to a tape ceiling, not a brick wall.
To a ceiling, not a wall
Most mastering these days is a loudness race. We master to a tape ceiling — the signal sits where the room naturally lets it, and nothing gets squashed.
The chain
source your mix, as you made it eq a little, only where it needs it tape print to 1/2" at 15 ips limit none, if we can help it
What you get
A master that breathes. It'll be a few dB quieter than the loud stuff on streaming — and it'll sound like a record, not a file.