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 only about making your songs sound LOUDER, but about making them sound nicer, fuller, with a distinctive tonal character so they always sound "like a record,” regardless of the sound system used for playback.
We prepare mastered audio files for analogue releases (cassette & vinyl) and digital formats (CD Disc Description Protocol & high-resolution for online distributors, including Apple Digital Masters). We also master audio tracks for STEMS format.