======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '194'
                                          'artist'  'R.E.M.'
                                     'text_people'  ''
                                         'release'  'Eponymous'
                                           'title'  "So. Central Rain (I'm Sorry)"
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-4', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['alternative rock', 'indie', 'alternative', 'pop', 'rock']"
                                     'discogstags'  "['rock', 'alternative rock', 'pop rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  '12'
                                            'date'  '1988'
                                        'comments'  ''
                                           'genre'  'rock-pop'
                                             'bpm'  '145.371'
                                             'key'  '8A'
                                        'acoustid'  '9269f96e-c0b5-4cbe-9679-9452fc99a2f7'
rest: ''

======================== rawer (from filesystem) ========================

'COMM:ID3v1 Comment:XXX'                            'Berry - Buck - Mills - Stipe'
'TALB' (Album/Movie/Show title)                     'Eponymous'
'TBPM' (BPM (beats per minute))                     '145.371'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop'
'TDOR' (Original release time)                      '1988'
'TDRC' (Recording time)                             '1988'
'TIT2' (Title/songname/content description)         "So. Central Rain (I'm Sorry)"
'TKEY' (Initial key)                                '8A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'R.E.M.'
'TPE2' (Band/orchestra/accompaniment)               'R.E.M.'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'I.R.S. Records'
'TRCK' (Track number/Position in set)               '4/12'
'TSO2'                                              'R.E.M.'
'TSOP' (Performer sort order)                       'R.E.M.'
'TXXX:Acoustid Id'                                  '9269f96e-c0b5-4cbe-9679-9452fc99a2f7'
'TXXX:BARCODE'                                      '076732626221'
'TXXX:CATALOGNUMBER'                                'IRSXD-6262'
'TXXX:MusicBrainz Album Artist Id'                  'ea4dfa26-f633-4da6-a52a-f49ea4897b58'
'TXXX:MusicBrainz Album Id'                         '4c2e24f2-8cd7-490b-a41c-c950b3c1ec6c'
'TXXX:MusicBrainz Album Release Country'            'CA'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'compilation'
'TXXX:MusicBrainz Artist Id'                        'ea4dfa26-f633-4da6-a52a-f49ea4897b58'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['rock', 'alternative rock', 'pop rock']
'TXXX:lastfmtags'                                   ['alternative rock', 'indie', 'alternative', 'pop', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.20 dB'
'TXXX:replaygain_track_peak'                        '0.831207'

========================== row from database ==========================
                                              'id'  1340476
                                            'path'  /data/Music/Bulk/00poprockelectronic/R.E.M/REM - Eponymous/04 - So. Central Rain.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  194
                                           'genre'  rock-pop
                                        'filesize'  3120331
                                           'mtime'  1636917788
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic REM 04 rock pop
                                      'tag_artist'  R.E.M.
                                     'tag_release'  Eponymous
                                       'tag_title'  So. Central Rain (I'm Sorry)
                                             'bpm'  145.371
                                    'search_title'  'central':3 'i':5 'im':7 'm':6 'rain':4 'so':1,2 'sorry':8,9
                                   'search_artist'  'e':2 'm':3 'r':1 'rem':4
                                  'search_release'  'eponymous':1
                                     'search_rest'  '00poprockelectronic':1 'pop':4 'rem':2 'rock':3
                                    'search_combo'  '00poprockelectronic':15 'central':3A 'e':11B 'eponymous':14C 'i':5A 'im':7A 'm':6A,12B 'pop':18 'r':10B 'rain':4A 'rem':13B,16 'rock':17 'so':1A,2A 'sorry':8A,9A
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-4', 'q-other-2', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['alternative rock', 'indie', 'alternative', 'pop', 'rock']
                                        'tag_date'  1988
                                     'discogstags'  ['rock', 'alternative rock', 'pop rock']

============================== file details ==============================
                                           'mtime'  1636917788.1612954  (2021-11-14 20:23:08)
                             'size'  3120331