======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '207'
                                          'artist'  'Sublime'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Tequilla'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-LOCALNESS-2', 'Q-HHRNBTT-2', 'Q-OLDST-3', "
 "'Q-UNU-1', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['reggae', 'alternative', 'ska', 'punk', 'rock']"
                                     'discogstags'  "['progressive house', 'electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '0'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-dance'
                                             'bpm'  '137.013'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '137.013'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-dance'
'TIT2' (Title/songname/content description)         'Tequilla'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Sublime'
'TRCK' (Track number/Position in set)               '0'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['progressive house', 'electronic']
'TXXX:lastfmtags'                                   ['reggae', 'alternative', 'ska', 'punk', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'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'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.45 dB'
'TXXX:replaygain_track_peak'                        '0.587646'

========================== row from database ==========================
                                              'id'  1404154
                                            'path'  /data/Music/Bulk/00poprockelectronic-generic-dance-trapbeat/Top 40/Sublime - Tequilla.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  207
                                           'genre'  electronic-generic or radio-dance
                                        'filesize'  3325824
                                           'mtime'  1621696476
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic generic dance trapbeat Top 40 electronic generic or radio dance
                                      'tag_artist'  Sublime
                                     'tag_release'  None
                                       'tag_title'  Tequilla
                                             'bpm'  137.013
                                    'search_title'  'tequilla':1
                                   'search_artist'  'sublime':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 '40':6 'dance':3 'electronic':7 'generic':2 'or':8 'radio':9 'top':5 'trapbeat':4
                                    'search_combo'  '00poprockelectronic':3 '40':8 'dance':5 'electronic':9 'generic':4 'or':10 'radio':11 'sublime':2B 'tequilla':1A 'top':7 'trapbeat':6
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-3', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['reggae', 'alternative', 'ska', 'punk', 'rock']
                                        'tag_date'  
                                     'discogstags'  ['progressive house', 'electronic']

============================== file details ==============================
                                           'mtime'  1621696475.828424  (2021-05-22 17:14:35)
                             'size'  3325824