Generally speaking, mastering is balancing and adjusting audio levels, dynamics, and equalization amongst different tracks; creating fades and crossfades between playlist tracks; and sequencing/spacing an album.
Mastering shouldn’t be about only making tracks sound LOUDER, but about making them sound nicer, fuller, with a distinctive tonal character so it sounds "like a record."
We prepare mastered audio files for analogue releases (e.g. cassette & vinyl) and digital formats (e.g. CD Disc Description Protocol, high-resolution content delivery for online distributors (including MFiT). We also master audio tracks for STEMS format.