======================== unified (from filesystem) ========================
                                         'bitrate'  '237.341'
                                        'duration'  '291'
                                          'artist'  'Slowdive'
                                     'text_people'  ''
                                         'release'  'Souvlaki'
                                           'title'  'Sing'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-2', 'q-other-4', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['indie', 'shoegaze', 'shoegazer', 'dream pop', 'ambient']"
                                     'discogstags'  "['rock', 'shoegaze', 'dream pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '04'
                                      'tracktotal'  ''
                                            'date'  '1993'
                                        'comments'  ''
                                           'genre'  'electronic-shoegaze or dreampop'
                                             'bpm'  '139.2'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Souvlaki'
'TBPM' (BPM (beats per minute))                     '139.2'
'TCON' (Content type, a.k.a. Genre)                 'electronic-shoegaze or dreampop'
'TDRC' (Recording time)                             '1993'
'TIT2' (Title/songname/content description)         'Sing'
'TKEY' (Initial key)                                '9A'
'TLEN' (Length)                                     '291240'
'TPE1' (Lead performer(s)/Soloist(s))               'Slowdive'
'TRCK' (Track number/Position in set)               '04'
'TSSE' (Software/Hardware and settings used for encoding)  'LAME 32bits version 3.98.4 (http://www.mp3dev.org/)'
'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:discogstags'                                  ['rock', 'shoegaze', 'dream pop']
'TXXX:lastfmtags'                                   ['indie', 'shoegaze', 'shoegazer', 'dream pop', 'ambient']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.66 dB'
'TXXX:replaygain_track_peak'                        '0.671692'

========================== row from database ==========================
                                              'id'  1376380
                                            'path'  /data/Music/Bulk/00poprockelectronic-poprock-indierock/Slowdive - Souvlaki/04 Sing.mp3
                                         'working'  None
                                         'bitrate'  237
                                    'duration_sec'  291
                                           'genre'  electronic-shoegaze or dreampop
                                        'filesize'  8652783
                                           'mtime'  1636910078
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic poprock indierock 04 electronic shoegaze or dreampop
                                      'tag_artist'  Slowdive
                                     'tag_release'  Souvlaki
                                       'tag_title'  Sing
                                             'bpm'  139.2
                                    'search_title'  'sing':1
                                   'search_artist'  'slowdive':1
                                  'search_release'  'souvlaki':1
                                     'search_rest'  '00poprockelectronic':1 'dreampop':7 'electronic':4 'indierock':3 'or':6 'poprock':2 'shoegaze':5
                                    'search_combo'  '00poprockelectronic':4 'dreampop':10 'electronic':7 'indierock':6 'or':9 'poprock':5 'shoegaze':8 'sing':1A 'slowdive':2B 'souvlaki':3C
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', '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-2', 'q-syn-2', 'q-chart-3', 'q-other-4', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'shoegaze', 'shoegazer', 'dream pop', 'ambient']
                                        'tag_date'  1993
                                     'discogstags'  ['rock', 'shoegaze', 'dream pop']

============================== file details ==============================
                                           'mtime'  1636910078.0779727  (2021-11-14 18:14:38)
                             'size'  8652783