======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '1000'
                                          'artist'  'Peking Opera Troupe'
                                     'text_people'  ''
                                         'release'  'Red Detachment of Women'
                                           'title'  ('Prologue: Escape from Tigers Maw / Scene One: Chang-Ching points out the '
 'road to revolution')
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-OLDST-2', "
 "'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '1972'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '138.2'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM::eng'                                         'blog.wfmu.org'
'TALB' (Album/Movie/Show title)                     'Red Detachment of Women'
'TBPM' (BPM (beats per minute))                     '138.2'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TDRC' (Recording time)                             '1972'
'TIT2' (Title/songname/content description)         ('Prologue: Escape from Tigers Maw / Scene One: Chang-Ching points out the '
 'road to revolution')
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Peking Opera Troupe'
'TRCK' (Track number/Position in set)               '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'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'                        '+3.24 dB'
'TXXX:replaygain_track_peak'                        '0.616664'

========================== row from database ==========================
                                              'id'  660246
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/10/282_1_Peking_Opera_Troupe_-_Red_Detachment_of_Women_-_Side_One.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  1000
                                           'genre'  electronic-unsorted
                                        'filesize'  32798967
                                           'mtime'  1620515896
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 10 282_1_Peking_Opera_Troupe_ _Red_Detachment_of_Women_ _Side_One electronic unsorted
                                      'tag_artist'  Peking Opera Troupe
                                     'tag_release'  Red Detachment of Women
                                       'tag_title'  Prologue: Escape from Tigers Maw / Scene One: Chang-Ching points out the road to revolution
                                             'bpm'  138.2
                                    'search_title'  'chang':10 'changching':12 'ching':11 'escape':3 'from':4 'maw':6 'one':8,9 'out':14 'points':13 'prologue':1,2 'revolution':18 'road':16 'scene':7 'the':15 'tigers':5 'to':17
                                   'search_artist'  'opera':2 'peking':1 'troupe':3
                                  'search_release'  'detachment':2 'of':3 'red':1 'women':4
                                     'search_rest'  '1':2 '282':1 'detachment':7 'electronic':12 'of':8 'one':11 'opera':4 'peking':3 'red':6 'side':10 'troupe':5 'unsorted':13 'women':9
                                    'search_combo'  '1':27 '282':26 'chang':10A 'changching':12A 'ching':11A 'detachment':23C,32 'electronic':37 'escape':3A 'from':4A 'maw':6A 'of':24C,33 'one':8A,9A,36 'opera':20B,29 'out':14A 'peking':19B,28 'points':13A 'prologue':1A,2A 'red':22C,31 'revolution':18A 'road':16A 'scene':7A 'side':35 'the':15A 'tigers':5A 'to':17A 'troupe':21B,30 'unsorted':38 'women':25C,34
                                    'tag_tracknum'  1
                                      'num_images'  1
                                             'key'  1A
                                           '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-1', 'q-syn-2', 'q-chart-2', 'q-other-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1972
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620515895.5875351  (2021-05-09 01:18:15)
                             'size'  32798967