Library & Prep

Comment Field

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A free-text metadata field in DJ software for storing custom notes about a track.

The comment field is an editable text column in DJ software and music library applications where a DJ can write any freeform note directly into the track's metadata. Common uses include energy ratings, compatible Camelot keys, crowd-reaction observations, bar counts for the intro and outro, or reminders about technical quirks such as a late drop or an unusual structure.

Why it matters

Because the comment field travels with a track's ID3 or library record, the notes are visible at the point of selection during a live set, reducing the need to recall prep details from memory. A consistent comment convention across a library lets a DJ scan, sort, and filter tracks quickly under pressure.

In practice

Pick a short, consistent syntax and apply it to every track during prep rather than on the fly. A format such as "8i / 8o / E7 / 6A 7A" encodes intro bars, outro bars, energy score, and compatible Camelot keys in one scannable line that fits in the column width most software displays.

Frequently asked questions

Yes, when a track is exported from Rekordbox to a USB drive, comment field data is included in the export database and displayed on Pioneer CDJ and XDJ screens in the track information view. Serato's comment tags are stored as ID3 comment frames, so they are readable by any player or software that supports standard ID3 metadata.
Tags and color labels are categorical: they group tracks into predefined buckets and are designed for filtering. The comment field is a single free-text string intended for nuanced, track-specific notes that do not fit a fixed category. Many DJs use both together, applying a color label for broad energy grouping and the comment field for the precise details that only that track needs.
It depends on how each application stores the data. Rekordbox writes comment data to a proprietary database by default but can also write to file ID3 tags if that option is enabled. Serato reads and writes directly to ID3 comment frames in the audio file. If your comments are written to the file's ID3 tags, they are portable across software; if they live only in a software database, you may need to export or re-enter them after a migration.
Ben Modigell

Hey, it's Ben Modigell 👋

I DJ and produce as so I so — downtempo, minimal, dub house, tech house, and techno (releases on Spotify and SoundCloud, links above). Everything I write here comes from my own gigs, studio sessions, and library cleanups: the rules I follow, the failure modes I've actually hit, and the workflow I use when nobody's watching. If a technique didn't earn its place in my own sets, it doesn't make it into a tutorial.

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