======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '382'
                                          'artist'  'KMFDM'
                                     'text_people'  ''
                                         'release'  'Boots'
                                           'title'  'These Boots Are Made for Walki'
                                           'quals'  ("['Q-UNU-2', 'Q-JZFKS-1', 'Q-LOCALNESS-2', '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-3', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['industrial metal', 'german', 'industrial', 'electronic', 'industrial rock']"
                                     'discogstags'  "['electronic', 'rock', 'industrial']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'eid-ebm or industrial or darkwave'
                                             'bpm'  '140.044'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Boots'
'TBPM' (BPM (beats per minute))                     '140.044'
'TCON' (Content type, a.k.a. Genre)                 'eid-ebm or industrial or darkwave'
'TDRC' (Recording time)                             '2002'
'TIT2' (Title/songname/content description)         'These Boots Are Made for Walki'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'KMFDM'
'TRCK' (Track number/Position in set)               '3'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['electronic', 'rock', 'industrial']
'TXXX:lastfmtags'                                   ['industrial metal', 'german', 'industrial', 'electronic', 'industrial rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.38 dB'
'TXXX:replaygain_track_peak'                        '0.701452'

========================== row from database ==========================
                                              'id'  1400951
                                            'path'  /data/Music/Bulk/00dwimp/00ebm-industrial-darkwave-goth/KMFDM/MBZ;#KMFDM;#Boots;#03;#These Boots Are Made for Walking (Candy Mix).mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  382
                                           'genre'  eid-ebm or industrial or darkwave
                                        'filesize'  7644544
                                           'mtime'  1620296015
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00ebm industrial darkwave goth MBZ;#KMFDM;#Boots;#03;#These Walking (Candy Mix) eid ebm industrial darkwave
                                      'tag_artist'  KMFDM
                                     'tag_release'  Boots
                                       'tag_title'  These Boots Are Made for Walki
                                             'bpm'  140.044
                                    'search_title'  'are':3 'boots':2 'for':5 'made':4 'these':1 'walki':6
                                   'search_artist'  'kmfdm':1
                                  'search_release'  'boots':1
                                     'search_rest'  '00dwimp':1 '00ebm':2 '03':9,14 'boots':8,13 'candy':17,18 'darkwave':4 'ebm':22 'eid':21 'goth':5 'industrial':3 'kmfdm':7,12 'mbz':6,11 'mix':19,20 'these':10,15 'walking':16
                                    'search_combo'  '00dwimp':9 '00ebm':10 '03':17,22 'are':3A 'boots':2A,8C,16,21 'candy':25,26 'darkwave':12 'ebm':30 'eid':29 'for':5A 'goth':13 'industrial':11 'kmfdm':7B,15,20 'made':4A 'mbz':14,19 'mix':27,28 'these':1A,18,23 'walki':6A 'walking':24
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-3', 'q-other-1', 'Q-HAP-1', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  ['industrial metal', 'german', 'industrial', 'electronic', 'industrial rock']
                                        'tag_date'  2002
                                     'discogstags'  ['electronic', 'rock', 'industrial']

============================== file details ==============================
                                           'mtime'  1620296015.4545548  (2021-05-06 12:13:35)
                             'size'  7644544