======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '395'
                                          'artist'  'King Crimson'
                                     'text_people'  ''
                                         'release'  'Beat'
                                           'title'  'Requiem'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['rock', 'progressive rock', 'progressive', 'experimental', 'classic rock']"
                                     'discogstags'  "['rock', 'prog rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  ''
                                            'date'  '1982'
                                        'comments'  ''
                                           'genre'  'rock-cppex-experimental or noise;rock-cppex-progressive'
                                             'bpm'  '115.854'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Beat'
'TBPM' (BPM (beats per minute))                     '115.854'
'TCON' (Content type, a.k.a. Genre)                 ['rock-cppex-experimental or noise', 'rock-cppex-progressive']
'TDRC' (Recording time)                             '1982'
'TIT2' (Title/songname/content description)         'Requiem'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'King Crimson'
'TRCK' (Track number/Position in set)               '8'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rock', 'prog rock']
'TXXX:lastfmtags'                                   ['rock', 'progressive rock', 'progressive', 'experimental', 'classic rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'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'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.02 dB'
'TXXX:replaygain_track_peak'                        '0.784901'

========================== row from database ==========================
                                              'id'  1309334
                                            'path'  /data/Music/Bulk/00poprockelectronic/King Crimson/MBZ;#King Crimson;#Beat;#08;#Requiem.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  395
                                           'genre'  rock-cppex-experimental or noise;rock-cppex-progressive
                                        'filesize'  6333972
                                           'mtime'  1636918100
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic MBZ;#King Crimson;#Beat;#08;#Requiem rock cppex experimental or noise;rock cppex progressive
                                      'tag_artist'  King Crimson
                                     'tag_release'  Beat
                                       'tag_title'  Requiem
                                             'bpm'  115.854
                                    'search_title'  'requiem':1
                                   'search_artist'  'crimson':2 'king':1
                                  'search_release'  'beat':1
                                     'search_rest'  '00poprockelectronic':1 '08':8,12 'beat':7,11 'cppex':15 'crimson':6,10 'experimental':16 'king':3,5 'mbz':2,4 'noise':18,20 'or':17 'progressive':22 'requiem':9,13 'rock':14,19,21
                                    'search_combo'  '00poprockelectronic':5 '08':12,16 'beat':4C,11,15 'cppex':19 'crimson':3B,10,14 'experimental':20 'king':2B,7,9 'mbz':6,8 'noise':22,24 'or':21 'progressive':26 'requiem':1A,13,17 'rock':18,23,25
                                    'tag_tracknum'  8
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['rock', 'progressive rock', 'progressive', 'experimental', 'classic rock']
                                        'tag_date'  1982
                                     'discogstags'  ['rock', 'prog rock']

============================== file details ==============================
                                           'mtime'  1636918099.5890577  (2021-11-14 20:28:19)
                             'size'  6333972