======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '288'
                                          'artist'  'Skinny Puppy'
                                     'text_people'  ''
                                         'release'  'B-Sides Collect'
                                           'title'  'Tin Omen I'
                                           'quals'  ("['Q-UNU-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-4', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-4']")
                                      'lastfmtags'  "['ebm', 'industrial', 'electronic', 'experimental', 'industrial rock']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '11'
                                      'tracktotal'  ''
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'eid-ebm or industrial or darkwave'
                                             'bpm'  '120.614'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'B-Sides Collect'
'TBPM' (BPM (beats per minute))                     '120.614'
'TCON' (Content type, a.k.a. Genre)                 'eid-ebm or industrial or darkwave'
'TDRC' (Recording time)                             '1999'
'TIT2' (Title/songname/content description)         'Tin Omen I'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Skinny Puppy'
'TRCK' (Track number/Position in set)               '11'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['ebm', 'industrial', 'electronic', 'experimental', 'industrial rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '4'
'TXXX:q-mixbeat'                                    '4'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.33 dB'
'TXXX:replaygain_track_peak'                        '0.449380'

========================== row from database ==========================
                                              'id'  1391495
                                            'path'  /data/Music/Bulk/00dwimp/00ebm-industrial-darkwave-goth/Skinny Puppy/B-Sides Collect/11. Tin Omen 1.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  288
                                           'genre'  eid-ebm or industrial or darkwave
                                        'filesize'  6931954
                                           'mtime'  1620296059
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00ebm industrial darkwave goth 11. 1 eid ebm or industrial or darkwave
                                      'tag_artist'  Skinny Puppy
                                     'tag_release'  B-Sides Collect
                                       'tag_title'  Tin Omen I
                                             'bpm'  120.614
                                    'search_title'  'i':3 'omen':2 'tin':1
                                   'search_artist'  'puppy':2 'skinny':1
                                  'search_release'  'b':1 'bsides':3 'collect':4 'sides':2
                                     'search_rest'  '00dwimp':1 '00ebm':2 '1':8 '11':6,7 'darkwave':4 'ebm':10 'eid':9 'goth':5 'industrial':3 'or':11
                                    'search_combo'  '00dwimp':10 '00ebm':11 '1':17 '11':15,16 'b':6C 'bsides':8C 'collect':9C 'darkwave':13 'ebm':19 'eid':18 'goth':14 'i':3A 'industrial':12 'omen':2A 'or':20 'puppy':5B 'sides':7C 'skinny':4B 'tin':1A
                                    'tag_tracknum'  11
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-4', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-2', 'Q-HAP-1', 'q-bass-3', 'q-grit-4']
                                      'lastfmtags'  ['ebm', 'industrial', 'electronic', 'experimental', 'industrial rock']
                                        'tag_date'  1999
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1620296058.7906446  (2021-05-06 12:14:18)
                             'size'  6931954