I have a disagreement with the Classical Track Title style guide. This guide recommends putting the entire track title into the Title field, including Grouping, Title, and Version (“Concerto in G major: I. Allegro, Op 9 no 6”). But this is not in compliance with the ID3 specification, and it causes Picard to incorrectly tag files.
When editing tracks in MusicBrainz, the editor doesn’t even provide inputs for TIT1 or TIT3, which means correct entry of multi-movement works is not possible.
There are 3 ID3 tags intended for titling tracks. Below is an excerpt from the ID3 specification:
TIT1 - The ‘Content group description’ frame is used if the sound belongs to a larger category of sounds/music. For example, classical music is often sorted in different musical sections (e.g. “Piano Concerto”, “Weather - Hurricane”).
TIT2 - The ‘Title/Songname/Content description’ frame is the actual name of the piece (e.g. “Adagio”, “Hurricane Donna”).
TIT3 - The ‘Subtitle/Description refinement’ frame is used for information directly related to the contents title (e.g. “Op. 16” or “Performed live at Wembley”).
As an example, consider the following classical composition by Tomaso Albinoni:
Formatted per the MB Style Guide, the tracks below all have the complete title in TIT2, while TIT1 and TIT3 are blank.
TIT1 │TIT2 │TIT3 │Concerto in G major, Op 9 no 6: Allegro │ │Concerto in G major, Op 9 no 6: Adagio (non troppo) │ │Concerto in G major, Op 9 no 6: Allegro │
According to the ID3 spec (or at least, how I interpret it), it should look like this:
TIT1 │TIT2 │TIT3 Concerto in G major │Allegro │Op 9 no 6 Concerto in G major │Adagio (non troppo) │Op 9 no 6 Concerto in G major │Allegro │Op 9 no 6