======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '226'
                                          'artist'  'Erasure'
                                     'text_people'  ''
                                         'release'  'Pop! The First 20 Hits'
                                           'title'  'Take a Chance on Me'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['80s', 'new wave', 'scrubs', 'pop', 'synthpop']"
                                     'discogstags'  "['electronic', 'synth-pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '20'
                                      'tracktotal'  ''
                                            'date'  '1992'
                                        'comments'  ''
                                           'genre'  'electronic-we-electropop or synthpop'
                                             'bpm'  '117.945'
                                             'key'  '4B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Pop! The First 20 Hits'
'TBPM' (BPM (beats per minute))                     '117.945'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-electropop or synthpop'
'TDRC' (Recording time)                             '1992'
'TIT2' (Title/songname/content description)         'Take a Chance on Me'
'TKEY' (Initial key)                                '4B'
'TPE1' (Lead performer(s)/Soloist(s))               'Erasure'
'TRCK' (Track number/Position in set)               '20'
'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'                                  ['electronic', 'synth-pop']
'TXXX:lastfmtags'                                   ['80s', 'new wave', 'scrubs', 'pop', 'synthpop']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.20 dB'
'TXXX:replaygain_track_peak'                        '0.791746'

========================== row from database ==========================
                                              'id'  1346908
                                            'path'  /data/Music/Bulk/00poprockelectronic/Erasure/Take a Chance on Me (Erasure, Pop! The First 20 Hits).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  226
                                           'genre'  electronic-we-electropop or synthpop
                                        'filesize'  3618261
                                           'mtime'  1622757461
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic (Erasure, Hits) electronic we electropop or synthpop
                                      'tag_artist'  Erasure
                                     'tag_release'  Pop! The First 20 Hits
                                       'tag_title'  Take a Chance on Me
                                             'bpm'  117.945
                                    'search_title'  'a':2 'chance':3 'me':5 'on':4 'take':1
                                   'search_artist'  'erasure':1
                                  'search_release'  '20':4 'first':3 'hits':5 'pop':1 'the':2
                                     'search_rest'  '00poprockelectronic':1 'electronic':6 'electropop':8 'erasure':2,3 'hits':4,5 'or':9 'synthpop':10 'we':7
                                    'search_combo'  '00poprockelectronic':12 '20':10C 'a':2A 'chance':3A 'electronic':17 'electropop':19 'erasure':6B,13,14 'first':9C 'hits':11C,15,16 'me':5A 'on':4A 'or':20 'pop':7C 'synthpop':21 'take':1A 'the':8C 'we':18
                                    'tag_tracknum'  20
                                      'num_images'  0
                                             'key'  4B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-4', 'q-syn-3', 'q-chart-4', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['80s', 'new wave', 'scrubs', 'pop', 'synthpop']
                                        'tag_date'  1992
                                     'discogstags'  ['electronic', 'synth-pop']

============================== file details ==============================
                                           'mtime'  1622757461.3941853  (2021-06-03 23:57:41)
                             'size'  3618261