======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '168'
                                          'artist'  'Depeche Mode'
                                     'text_people'  ''
                                         'release'  'Black Celebration'
                                           'title'  'World Full of Nothing'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['80s', 'new wave', 'electronic', 'synthpop']"
                                     'discogstags'  "['electronic', 'synth-pop', 'darkwave']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  ''
                                            'date'  '1986'
                                        'comments'  ''
                                           'genre'  'electronic-we-electropop or synthpop'
                                             'bpm'  '89.374'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Black Celebration'
'TBPM' (BPM (beats per minute))                     '89.374'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-electropop or synthpop'
'TDRC' (Recording time)                             '1986'
'TIT2' (Title/songname/content description)         'World Full of Nothing'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Depeche Mode'
'TRCK' (Track number/Position in set)               '9'
'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:discogstags'                                  ['electronic', 'synth-pop', 'darkwave']
'TXXX:lastfmtags'                                   ['80s', 'new wave', 'electronic', 'synthpop']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.91 dB'
'TXXX:replaygain_track_peak'                        '0.653123'

========================== row from database ==========================
                                              'id'  1283777
                                            'path'  /data/Music/Bulk/00poprockelectronic/Depeche Mode/Black Celebration/MBZ;#Depeche Mode;#Black Celebration;#1986-00-00;#09;#World Full of Nothing.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  168
                                           'genre'  electronic-we-electropop or synthpop
                                        'filesize'  4048339
                                           'mtime'  1636922615
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic MBZ;#Depeche Mode;#Black Celebration;#1986 00 00;#09;#World electronic we electropop synthpop
                                      'tag_artist'  Depeche Mode
                                     'tag_release'  Black Celebration
                                       'tag_title'  World Full of Nothing
                                             'bpm'  89.374
                                    'search_title'  'full':2 'nothing':4 'of':3 'world':1
                                   'search_artist'  'depeche':1 'mode':2
                                  'search_release'  'black':1 'celebration':2
                                     'search_rest'  '00':14,15,18 '00poprockelectronic':1 '09':16,19 '1986':11,13 'black':7,9 'celebration':10,12 'depeche':3,5 'electronic':21 'electropop':23 'mbz':2,4 'mode':6,8 'synthpop':24 'we':22 'world':17,20
                                    'search_combo'  '00':22,23,26 '00poprockelectronic':9 '09':24,27 '1986':19,21 'black':7C,15,17 'celebration':8C,18,20 'depeche':5B,11,13 'electronic':29 'electropop':31 'full':2A 'mbz':10,12 'mode':6B,14,16 'nothing':4A 'of':3A 'synthpop':32 'we':30 'world':1A,25,28
                                    'tag_tracknum'  9
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-3', 'q-chart-4', 'q-other-3', 'Q-HAP-2', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['80s', 'new wave', 'electronic', 'synthpop']
                                        'tag_date'  1986
                                     'discogstags'  ['electronic', 'synth-pop', 'darkwave']

============================== file details ==============================
                                           'mtime'  1636922615.2290235  (2021-11-14 21:43:35)
                             'size'  4048339