add tag "Conductor"

NEWS

@@ -6,7 +6,7 @@ ver 0.22 (not yet released)
   - relax the ISO 8601 parser: allow omitting the time of day and the "Z"
     suffix
 * tags
-  - new tags "Grouping" (for ID3 "TIT1") and "Work"
+  - new tags "Grouping" (for ID3 "TIT1"), "Work" and "Conductor"
 * input
   - curl: support "charset" parameter in URI fragment
   - ffmpeg: allow partial reads

doc/protocol.rst

@@ -283,6 +283,7 @@ The following tags are supported by :program:`MPD`:
 * **date**: the song's release date. This is usually a 4-digit year.
 * **composer**: the artist who composed the song.
 * **performer**: the artist who performed the song.
+* **conductor**: the conductor who conducted the song.
 * **work**: `"a work is a distinct intellectual or artistic creation,
   which can be expressed in the form of one or more audio recordings" <https://musicbrainz.org/doc/Work>`_
 * **grouping**: "used if the sound belongs to a larger category of

src/tag/Names.c

@@ -34,6 +34,7 @@ const char *const tag_item_names[TAG_NUM_OF_ITEM_TYPES] = {
 	[TAG_ORIGINAL_DATE] = "OriginalDate",
 	[TAG_COMPOSER] = "Composer",
 	[TAG_PERFORMER] = "Performer",
+	[TAG_CONDUCTOR] = "Conductor",
 	[TAG_WORK] = "Work",
 	[TAG_GROUPING] = "Grouping",
 	[TAG_COMMENT] = "Comment",

src/tag/Type.h

@@ -49,6 +49,7 @@ enum TagType
 	TAG_ORIGINAL_DATE,
 	TAG_COMPOSER,
 	TAG_PERFORMER,
+	TAG_CONDUCTOR,
 	TAG_WORK,
 	TAG_GROUPING,
 	TAG_COMMENT,