Predefined Values for TCON

[Crissov]

Currently, TCON accepts two predefined two-letter keywords besides ID3v1 numeric genres and arbitrary text:

• RX Remix
• CR Cover Version

I propose we add more to this, e.g.:

• IT Instrumental Version without singing voices, cf. 33 $21 Instrumental and 99 $63 Acoustic
• LY Sung Lyrics without instruments or other music, cf. 28 $1C Vocal, 97 $61 Chorus and 123 $7B A cappella
• AB Audiobook, usually with a single narrator, cf. 101 $65 Speech
• RP Radioplay, usually with multiple voice actors, cf. 101 $65 Speech
• PC Podcast, usually with steady hosts, cf. 101 $65 Speech
• IV Interview or other dialog, cf. 101 $65 Speech and 120 $78 Duet
• AD Aural Description of a video, cf. 101 $65 Speech
• ST Soundtrack of a video, cf. 24 $18 Soundtrack
• BG Background Music of a video, cf. 24 $18 Soundtrack, 33 $21 Instrumental and 99 $63 Acoustic
• AS Ambient Sounds of a video, cf. 24 $18 Soundtrack and 26 $1A Ambient
• RT Telephone Ring Tone or Alarm Sound, cf. 37 $25 Sound Clip and 70 $46 Trailer
• XX Test Sound or Noise Signal, cf. 37 $25 Sound Clip and 12 $0C Other

Also see #10 for the proposed TAUT Audio Type frame.

[Crissov]

These could also get dedicated numeric genres for some compatibility with ID3v1.

192. $C0 Remix
193. $C1 Cover Version
194. $C2 Instrumental Version without singing voices
195. $C3 Sung Lyrics without instruments or other music
196. $C4 Audiobook, usually with a single narrator
197. $C5 Radioplay, usually with multiple voice actors
198. $C6 Podcast, usually with steady hosts
199. $C7 Interview or other dialog
200. $C8 Aural Description of a video
201. $C9 Soundtrack of a video
202. $CA Background Music of a video
203. $CB Ambient Sounds of a video
204. $CC Telephone Ring Tone
205. $CD Alarm Sound
206. $CE Test Sound
207. $CF Noise Signal
208. through 223. $D0 ,, $DF reserved for future use

224. through 239. $E0 .. $EF vendor-assigned public use

240. through 255. $E0 .. $FF user-defined private use