======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '236'
                                          'artist'  'Art Garfunkel'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Bright Eyes'
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['pop', '70s', 'soft rock', 'rock', 'folk', 'singer songwriter']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1975'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-folk'
                                             'bpm'  '114.2'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '114.2'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-folk'
'TDRC' (Recording time)                             '1975'
'TIT2' (Title/songname/content description)         'Bright Eyes'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Art Garfunkel'
'TXXX:Mp3gain_minmax'                               '061,181'
'TXXX:Mp3gain_undo'                                 '+004,+004,N'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['pop', '70s', 'soft rock', 'rock', 'folk', 'singer songwriter']
'TXXX:q-bass'                                       '2'
'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'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.15 dB'
'TXXX:replaygain_track_peak'                        '0.537180'

========================== row from database ==========================
                                              'id'  1248153
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Simon & Garfunkel - Simon and Garfunkel/Art Garfunkel - Bright Eyes.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  236
                                           'genre'  ifs-songwriter-folk
                                        'filesize'  7574975
                                           'mtime'  1636400745
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos Simon & Simon and ifs songwriter folk
                                      'tag_artist'  Art Garfunkel
                                     'tag_release'  None
                                       'tag_title'  Bright Eyes
                                             'bpm'  114.2
                                    'search_title'  'bright':1 'eyes':2
                                   'search_artist'  'art':1 'garfunkel':2
                                  'search_release'  
                                     'search_rest'  '00singer':1 'and':5 'eos':3 'folk':7 'ifs':6 'simon':4 'songwriter':2
                                    'search_combo'  '00singer':5 'and':9 'art':3B 'bright':1A 'eos':7 'eyes':2A 'folk':11 'garfunkel':4B 'ifs':10 'simon':8 'songwriter':6
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-2', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['pop', '70s', 'soft rock', 'rock', 'folk', 'singer songwriter']
                                        'tag_date'  1975
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636400744.663214  (2021-11-08 20:45:44)
                             'size'  7574975