======================== unified (from filesystem) ========================
                                         'bitrate'  '161.001'
                                        'duration'  '247'
                                          'artist'  'Panzer AG'
                                     'text_people'  ''
                                         'release'  'This is my Battlefield'
                                           'title'  'Behin A Gasmask'
                                           'quals'  ("['Q-UNU-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['ebm', 'aggrotech', 'industrial', 'dark electro', 'electronic']"
                                     'discogstags'  "['industrial', 'electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '13'
                                      'tracktotal'  ''
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'eid-ebm or industrial or darkwave'
                                             'bpm'  '100.009'
                                             'key'  '2A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            'Lbl Accession Rec. C:A071'
'TALB' (Album/Movie/Show title)                     'This is my Battlefield'
'TBPM' (BPM (beats per minute))                     '100.009'
'TCON' (Content type, a.k.a. Genre)                 'eid-ebm or industrial or darkwave'
'TDRC' (Recording time)                             '2004'
'TIT2' (Title/songname/content description)         'Behin A Gasmask'
'TKEY' (Initial key)                                '2A'
'TPE1' (Lead performer(s)/Soloist(s))               'Panzer AG'
'TRCK' (Track number/Position in set)               '13'
'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'                                  ['industrial', 'electronic']
'TXXX:lastfmtags'                                   ['ebm', 'aggrotech', 'industrial', 'dark electro', 'electronic']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.14 dB'
'TXXX:replaygain_track_peak'                        '0.377252'

========================== row from database ==========================
                                              'id'  1399280
                                            'path'  /data/Music/Bulk/00dwimp/00ebm-industrial-darkwave-goth/Panzer AG/This Is My Battlefield/13_panzer_ag-behind_a_gasmask-fwyh.mp3
                                         'working'  None
                                         'bitrate'  161
                                    'duration_sec'  247
                                           'genre'  eid-ebm or industrial or darkwave
                                        'filesize'  4986273
                                           'mtime'  1620296048
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00ebm industrial darkwave goth Is My 13_panzer_ag behind_a_gasmask fwyh eid ebm or industrial or darkwave
                                      'tag_artist'  Panzer AG
                                     'tag_release'  This is my Battlefield
                                       'tag_title'  Behin A Gasmask
                                             'bpm'  100.009
                                    'search_title'  'a':2 'behin':1 'gasmask':3
                                   'search_artist'  'ag':2 'panzer':1
                                  'search_release'  'battlefield':4 'is':2 'my':3 'this':1
                                     'search_rest'  '00dwimp':1 '00ebm':2 '13':8 'a':12 'ag':10 'behind':11 'darkwave':4 'ebm':16 'eid':15 'fwyh':14 'gasmask':13 'goth':5 'industrial':3 'is':6 'my':7 'or':17 'panzer':9
                                    'search_combo'  '00dwimp':10 '00ebm':11 '13':17 'a':2A,21 'ag':5B,19 'battlefield':9C 'behin':1A 'behind':20 'darkwave':13 'ebm':25 'eid':24 'fwyh':23 'gasmask':3A,22 'goth':14 'industrial':12 'is':7C,15 'my':8C,16 'or':26 'panzer':4B,18 'this':6C
                                    'tag_tracknum'  13
                                      'num_images'  0
                                             'key'  2A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-3', 'q-chart-2', 'q-other-2', 'Q-HAP-1', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  ['ebm', 'aggrotech', 'industrial', 'dark electro', 'electronic']
                                        'tag_date'  2004
                                     'discogstags'  ['industrial', 'electronic']

============================== file details ==============================
                                           'mtime'  1620296048.119903  (2021-05-06 12:14:08)
                             'size'  4986273