======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '214'
                                          'artist'  'King, Elle'
                                     'text_people'  ''
                                         'release'  'Love Stuff'
                                           'title'  'Song of Sorrow'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-OLDST-3', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  '12'
                                            'date'  '2015'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-indie-rock'
                                             'bpm'  '88.168'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Love Stuff'
'TBPM' (BPM (beats per minute))                     '88.168'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-indie-rock'
'TDRC' (Recording time)                             '2015'
'TENC' (Encoded by)                                 'AryaN_L33T'
'TIT2' (Title/songname/content description)         'Song of Sorrow'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'Elle King'
'TPE2' (Band/orchestra/accompaniment)               'King, Elle'
'TPUB' (Publisher)                                  'RCA Records (Sony Music)'
'TRCK' (Track number/Position in set)               '6/12'
'TSOP' (Performer sort order)                       'King, Elle'
'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:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.45 dB'
'TXXX:replaygain_track_peak'                        '0.370061'

========================== row from database ==========================
                                              'id'  1341970
                                            'path'  /data/Music/Bulk/00poprockelectronic-poprock-indierock/Love Stuff/06 Song of Sorrow.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  214
                                           'genre'  ifs-songwriter-indie-rock
                                        'filesize'  10147562
                                           'mtime'  1621697310
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic poprock indierock 06 ifs songwriter indie rock
                                      'tag_artist'  King, Elle
                                     'tag_release'  Love Stuff
                                       'tag_title'  Song of Sorrow
                                             'bpm'  88.168
                                    'search_title'  'of':2 'song':1 'sorrow':3
                                   'search_artist'  'elle':3 'king':1,2
                                  'search_release'  'love':1 'stuff':2
                                     'search_rest'  '00poprockelectronic':1 'ifs':4 'indie':6 'indierock':3 'poprock':2 'rock':7 'songwriter':5
                                    'search_combo'  '00poprockelectronic':9 'elle':6B 'ifs':12 'indie':14 'indierock':11 'king':4B,5B 'love':7C 'of':2A 'poprock':10 'rock':15 'song':1A 'songwriter':13 'sorrow':3A 'stuff':8C
                                    'tag_tracknum'  6
                                      'num_images'  1
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-3']
                                      'lastfmtags'  []
                                        'tag_date'  2015
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621697310.3624024  (2021-05-22 17:28:30)
                             'size'  10147562