======================== unified (from filesystem) ========================
                                         'bitrate'  '205.305'
                                        'duration'  '296'
                                          'artist'  'Terrorfakt'
                                     'text_people'  ''
                                         'release'  'Teethgrinder'
                                           'title'  'M15'
                                           'quals'  ("['Q-UNU-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-3', 'q-play-2', "
 "'q-chart-1', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['industrial', 'power noise', 'ebm', 'rhythmic noise', 'noise', 'powernoise']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  ''
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'eid-ebm or industrial or darkwave'
                                             'bpm'  '120.042'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Teethgrinder'
'TBPM' (BPM (beats per minute))                     '120.042'
'TCON' (Content type, a.k.a. Genre)                 'eid-ebm or industrial or darkwave'
'TDRC' (Recording time)                             '2006'
'TENC' (Encoded by)                                 'Lame 3.90.3 Mod'
'TIT2' (Title/songname/content description)         'M15'
'TKEY' (Initial key)                                '1A'
'TLAN' (Language(s))                                'English'
'TPE1' (Lead performer(s)/Soloist(s))               'Terrorfakt'
'TRCK' (Track number/Position in set)               '10'
'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'                                   ['industrial', 'power noise', 'ebm', 'rhythmic noise', 'noise', 'powernoise']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.65 dB'
'TXXX:replaygain_track_peak'                        '0.351908'

========================== row from database ==========================
                                              'id'  1398924
                                            'path'  /data/Music/Bulk/00dwimp/00ebm-industrial-darkwave-goth/Terrorfakt/Teethgrinder/10_terrorfakt-m15-fwyh.mp3
                                         'working'  None
                                         'bitrate'  205
                                    'duration_sec'  296
                                           'genre'  eid-ebm or industrial or darkwave
                                        'filesize'  7605979
                                           'mtime'  1620296070
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00ebm industrial darkwave goth 10_terrorfakt m15 fwyh eid ebm industrial darkwave
                                      'tag_artist'  Terrorfakt
                                     'tag_release'  Teethgrinder
                                       'tag_title'  M15
                                             'bpm'  120.042
                                    'search_title'  'm15':1
                                   'search_artist'  'terrorfakt':1
                                  'search_release'  'teethgrinder':1
                                     'search_rest'  '00dwimp':1 '00ebm':2 '10':6 'darkwave':4 'ebm':11 'eid':10 'fwyh':9 'goth':5 'industrial':3 'm15':8 'terrorfakt':7
                                    'search_combo'  '00dwimp':4 '00ebm':5 '10':9 'darkwave':7 'ebm':14 'eid':13 'fwyh':12 'goth':8 'industrial':6 'm15':1A,11 'teethgrinder':3C 'terrorfakt':2B,10
                                    'tag_tracknum'  10
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-1', 'q-bass-1', 'q-grit-3']
                                      'lastfmtags'  ['industrial', 'power noise', 'ebm', 'rhythmic noise', 'noise', 'powernoise']
                                        'tag_date'  2006
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1620296070.1576812  (2021-05-06 12:14:30)
                             'size'  7605979