======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '175'
                                          'artist'  'John Anderson'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Straight Tequila Night'
                                           'quals'  ("['Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-UNU-1', "
 "'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-3', "
 "'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-3']")
                                      'lastfmtags'  ("['classic country', 'greatest country artists', 'country', 'male country', "
 "'new traditionalist country']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-dance'
                                             'bpm'  '109.468'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '109.468'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-dance'
'TIT2' (Title/songname/content description)         'Straight Tequila Night'
'TKEY' (Initial key)                                '11A'
'TPE1' (Lead performer(s)/Soloist(s))               'John Anderson'
'TXXX:Mp3gain_minmax'                               '092,186'
'TXXX:Mp3gain_undo'                                 '+004,+004,N'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['classic country',
 'greatest country artists',
 'country',
 'male country',
 'new traditionalist country']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.05 dB'
'TXXX:replaygain_track_peak'                        '0.469939'

========================== row from database ==========================
                                              'id'  1405822
                                            'path'  /data/Music/Bulk/00poprockelectronic-generic-dance-trapbeat/Top 40/John Anderson- Straight Tequilla Night.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  175
                                           'genre'  electronic-generic or radio-dance
                                        'filesize'  2810602
                                           'mtime'  1620645411
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic generic dance trapbeat Top 40 Tequilla electronic generic or radio dance
                                      'tag_artist'  John Anderson
                                     'tag_release'  None
                                       'tag_title'  Straight Tequila Night
                                             'bpm'  109.468
                                    'search_title'  'night':3 'straight':1 'tequila':2
                                   'search_artist'  'anderson':2 'john':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 '40':6 'dance':3 'electronic':8 'generic':2 'or':9 'radio':10 'tequilla':7 'top':5 'trapbeat':4
                                    'search_combo'  '00poprockelectronic':6 '40':11 'anderson':5B 'dance':8 'electronic':13 'generic':7 'john':4B 'night':3A 'or':14 'radio':15 'straight':1A 'tequila':2A 'tequilla':12 'top':10 'trapbeat':9
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-3', 'q-chart-3', 'q-other-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['classic country', 'greatest country artists', 'country', 'male country', 'new traditionalist country']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620645410.506032  (2021-05-10 13:16:50)
                             'size'  2810602