======================== unified (from filesystem) ========================
                                         'bitrate'  '158.302'
                                        'duration'  '403'
                                          'artist'  'Voces Fquales'
                                     'text_people'  ''
                                         'release'  'Global Voices: Sacred'
                                           'title'  'O Domine Jesu Christe'
                                           'quals'  ("['Q-HAP-3', 'Q-OLDST-1', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-LOCALNESS-3', "
 "'Q-HHRNBTT-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '04'
                                      'tracktotal'  ''
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'loc-unsorted-mix'
                                             'bpm'  '133.491'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Global Voices: Sacred'
'TBPM' (BPM (beats per minute))                     '133.491'
'TCON' (Content type, a.k.a. Genre)                 'loc-unsorted-mix'
'TDRC' (Recording time)                             '1999'
'TENC' (Encoded by)                                 'Exact Audio Copy   (Secure mode)'
'TIT2' (Title/songname/content description)         'O Domine Jesu Christe'
'TKEY' (Initial key)                                '11A'
'TPE1' (Lead performer(s)/Soloist(s))               'Voces Fquales'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '04'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.67 dB'
'TXXX:replaygain_track_peak'                        '0.826471'

========================== row from database ==========================
                                              'id'  473311
                                            'path'  /data/Music/Bulk/00localcharacter/VA. World 1： Trad/Sacred Global Voices (Music Of The World, 1999) [159-320kvbr]/04 - Voces Æquales - O Domine Jesu Christe, Hungary.mp3
                                         'working'  None
                                         'bitrate'  158
                                    'duration_sec'  403
                                           'genre'  loc-unsorted-mix
                                        'filesize'  7995418
                                           'mtime'  1621629889
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter VA. World 1： Trad (Music Of The World, 1999) [159 320kvbr] 04 Æquales Christe, Hungary loc unsorted mix
                                      'tag_artist'  Voces Fquales
                                     'tag_release'  Global Voices: Sacred
                                       'tag_title'  O Domine Jesu Christe
                                             'bpm'  133.491
                                    'search_title'  'christe':4 'domine':2 'jesu':3 'o':1
                                   'search_artist'  'fquales':2 'voces':1
                                  'search_release'  'global':1 'sacred':4 'voices':2,3
                                     'search_rest'  '1':4,5,6 '159':15,16 '1999':13,14 '320kvbr':17,18 'aequales':20 'christe':21,22 'hungary':23 'loc':24 'mix':26 'music':8,9 'of':10 'the':11 'trad':7 'unsorted':25 'va':1,2 'world':3,12 'æquales':19
                                    'search_combo'  '1':14,15,16 '159':25,26 '1999':23,24 '320kvbr':27,28 'aequales':30 'christe':4A,31,32 'domine':2A 'fquales':6B 'global':7C 'hungary':33 'jesu':3A 'loc':34 'mix':36 'music':18,19 'o':1A 'of':20 'sacred':10C 'the':21 'trad':17 'unsorted':35 'va':11,12 'voces':5B 'voices':8C,9C 'world':13,22 'æquales':29
                                    'tag_tracknum'  4
                                      'num_images'  1
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-1', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1999
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621629889.4760644  (2021-05-21 22:44:49)
                             'size'  7995418