======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '264'
                                          'artist'  'The Bonzo Dog Band'
                                     'text_people'  ''
                                         'release'  'Tadpoles'
                                           'title'  'Shirt'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'Q-UNU-2', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['eccentric', 'jazz', 'comedy', 'psychedelic', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '1969'
                                        'comments'  ''
                                           'genre'  'electronic-experimental-oddness;set-pl-mor'
                                             'bpm'  '106.029'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Tadpoles'
'TBPM' (BPM (beats per minute))                     '106.029'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-experimental-oddness', 'set-pl-mor']
'TDRC' (Recording time)                             '1969'
'TIT2' (Title/songname/content description)         'Shirt'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Bonzo Dog Band'
'TRCK' (Track number/Position in set)               '2'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['eccentric', 'jazz', 'comedy', 'psychedelic', 'rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.89 dB'
'TXXX:replaygain_track_peak'                        '0.707259'

========================== row from database ==========================
                                              'id'  238673
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/0incharacter/Bonzo Dog Band/Tadpoles/02 - Shirt [Bonzo Dog Band].mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  264
                                           'genre'  electronic-experimental-oddness;set-pl-mor
                                        'filesize'  8472068
                                           'mtime'  1620571928
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 0incharacter 02 [Bonzo Band] electronic experimental oddness;set pl mor
                                      'tag_artist'  The Bonzo Dog Band
                                     'tag_release'  Tadpoles
                                       'tag_title'  Shirt
                                             'bpm'  106.029
                                    'search_title'  'shirt':1
                                   'search_artist'  'band':4 'bonzo':2 'dog':3 'the':1
                                  'search_release'  'tadpoles':1
                                     'search_rest'  '0incharacter':1 'band':4,5 'bonzo':2,3 'electronic':6 'experimental':7 'mor':13 'oddness':8,10 'pl':12 'set':9,11
                                    'search_combo'  '0incharacter':7 'band':5B,10,11 'bonzo':3B,8,9 'dog':4B 'electronic':12 'experimental':13 'mor':19 'oddness':14,16 'pl':18 'set':15,17 'shirt':1A 'tadpoles':6C 'the':2B
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['eccentric', 'jazz', 'comedy', 'psychedelic', 'rock']
                                        'tag_date'  1969
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620571927.7567716  (2021-05-09 16:52:07)
                             'size'  8472068