======================== unified (from filesystem) ========================
                                         'bitrate'  '227.47'
                                        'duration'  '301'
                                          'artist'  "L'Âme Immortelle"
                                     'text_people'  ''
                                         'release'  'Als die Liebe starb'
                                           'title'  'Tiefster Winter'
                                           'quals'  ("['Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-LOCALNESS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['darkwave', 'gothic', 'industrial', 'electronic', 'ebm']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '2003'
                                        'comments'  ''
                                           'genre'  'eid-ebm or industrial or darkwave'
                                             'bpm'  '110.302'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Als die Liebe starb'
'TBPM' (BPM (beats per minute))                     '110.302'
'TCON' (Content type, a.k.a. Genre)                 'eid-ebm or industrial or darkwave'
'TDRC' (Recording time)                             '2003'
'TIT2' (Title/songname/content description)         'Tiefster Winter'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               "L'Âme Immortelle"
'TRCK' (Track number/Position in set)               '2'
'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'
'TXXX:lastfmtags'                                   ['darkwave', 'gothic', 'industrial', 'electronic', 'ebm']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.03 dB'
'TXXX:replaygain_track_peak'                        '0.328650'

========================== row from database ==========================
                                              'id'  1527685
                                            'path'  /data/Music/Bulk/00dwimp/L_ame Immortelle/Lame Immortelle/L'-me.Immortelle.-.Als.Die.Liebe.Starb.(Eac.Lame3.90.2.-Ap.Extreme)/L'ame Immortelle - Als die Liebe starb/L_AME IMMORTELLE - Als die Liebe starb - 02 - Tiefster Winter.mp3
                                         'working'  None
                                         'bitrate'  227
                                    'duration_sec'  301
                                           'genre'  eid-ebm or industrial or darkwave
                                        'filesize'  8565570
                                           'mtime'  1620296678
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp L_ame Lame me.Immortelle. .Als.Die.Liebe.Starb.(Eac.Lame3.90.2. Ap.Extreme) L'ame L_AME IMMORTELLE 02 eid ebm industrial darkwave
                                      'tag_artist'  L'Âme Immortelle
                                     'tag_release'  Als die Liebe starb
                                       'tag_title'  Tiefster Winter
                                             'bpm'  110.302
                                    'search_title'  'tiefster':1 'winter':2
                                   'search_artist'  'ame':2,5 'immortelle':7 'l':1,4 'lame':3,6
                                  'search_release'  'als':1 'die':2 'liebe':3 'starb':4
                                     'search_rest'  '00dwimp':1 '2':15 '90':14 'als':8 'alsdieliebestarbeaclame3902':16 'ame':3 'ap':17 'apextreme':19 'darkwave':24 'die':9 'eac':12 'ebm':22 'eid':21 'extreme':18 'immortelle':6,20 'industrial':23 'l':2 'lame':4 'lame3':13 'liebe':10 'me':5 'meimmortelle':7 'starb':11
                                    'search_combo'  '00dwimp':14 '2':28 '90':27 'als':10C,21 'alsdieliebestarbeaclame3902':29 'ame':4B,7B,16 'ap':30 'apextreme':32 'darkwave':37 'die':11C,22 'eac':25 'ebm':35 'eid':34 'extreme':31 'immortelle':9B,19,33 'industrial':36 'l':3B,6B,15 'lame':5B,8B,17 'lame3':26 'liebe':12C,23 'me':18 'meimmortelle':20 'starb':13C,24 'tiefster':1A 'winter':2A
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-2', 'q-other-3', 'Q-HAP-1', 'q-bass-3', 'q-grit-3']
                                      'lastfmtags'  ['darkwave', 'gothic', 'industrial', 'electronic', 'ebm']
                                        'tag_date'  2003
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1620296678.143125  (2021-05-06 12:24:38)
                             'size'  8565570