======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '405'
                                          'artist'  'Violet UK'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  ''
                                           'quals'  ("['Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', 'Q-LOCALNESS-2', "
 "'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-3', 'q-play-3', 'q-chart-2', "
 "'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', 'q-mixbeat-2']")
                                      'lastfmtags'  "['yoshiki', 'rock', 'electronic', 'japanese', 'j rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-asia-japan;loc-asia-japan-jrock-visualkei'
                                             'bpm'  '131.755'
                                             'key'  '7B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '131.755'
'TCON' (Content type, a.k.a. Genre)                 ['loc-asia-japan', 'loc-asia-japan-jrock-visualkei']
'TKEY' (Initial key)                                '7B'
'TPE1' (Lead performer(s)/Soloist(s))               'Violet UK'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['yoshiki', 'rock', 'electronic', 'japanese', 'j rock']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+3.60 dB'
'TXXX:replaygain_track_peak'                        '0.954486'

========================== row from database ==========================
                                              'id'  1208312
                                            'path'  /data/Music/Bulk/0soundtrack/Yoshiki/[128] Violent UK/Violet UK - Longing.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  405
                                           'genre'  loc-asia-japan;loc-asia-japan-jrock-visualkei
                                        'filesize'  6489683
                                           'mtime'  1620647551
                                   'redo_metaread'  0
                                        'rest_str'   0soundtrack Yoshiki [128] Violent Longing loc asia japan;loc asia japan jrock visualkei
                                      'tag_artist'  Violet UK
                                     'tag_release'  None
                                       'tag_title'  None
                                             'bpm'  131.755
                                    'search_title'  None
                                   'search_artist'  'uk':2 'violet':1
                                  'search_release'  
                                     'search_rest'  '0soundtrack':1 '128':3,4 'asia':8 'japan':9,11,13 'jrock':14 'loc':7,10,12 'longing':6 'violent':5 'visualkei':15 'yoshiki':2
                                    'search_combo'  '0soundtrack':3 '128':5,6 'asia':10 'japan':11,13,15 'jrock':16 'loc':9,12,14 'longing':8 'uk':2B 'violent':7 'violet':1B 'visualkei':17 'yoshiki':4
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  7B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-piano-1', 'q-syn-2', 'q-chart-2', 'q-other-4', 'q-bass-2', 'q-grit-3']
                                      'lastfmtags'  ['yoshiki', 'rock', 'electronic', 'japanese', 'j rock']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620647551.3047218  (2021-05-10 13:52:31)
                             'size'  6489683