======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '245'
                                          'artist'  'Sinergy'
                                     'text_people'  ''
                                         'release'  'To Hell And Back'
                                           'title'  'Bitch Is Back'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-4', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['power metal', 'female fronted metal', 'metal', 'finnish', 'heavy metal']"
                                     'discogstags'  "['hardcore', 'gabber', 'electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'eid-metal-power'
                                             'bpm'  '111.824'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

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'TALB' (Album/Movie/Show title)                     'To Hell And Back'
'TBPM' (BPM (beats per minute))                     '111.824'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-power'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'Bitch Is Back'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Sinergy'
'TPE2' (Band/orchestra/accompaniment)               'Sinergy'
'TPUB' (Publisher)                                  'Nuclear Blast'
'TRCK' (Track number/Position in set)               '1'
'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'                                  ['hardcore', 'gabber', 'electronic']
'TXXX:lastfmtags'                                   ['power metal', 'female fronted metal', 'metal', 'finnish', 'heavy metal']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '4'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.93 dB'
'TXXX:replaygain_track_peak'                        '0.354956'

========================== row from database ==========================
                                              'id'  1391075
                                            'path'  /data/Music/Bulk/00dwimp/00metal/Sinergy/To Hell and Back/Sinergy - 01 - The Bitch is Back.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  245
                                           'genre'  eid-metal-power
                                        'filesize'  5898203
                                           'mtime'  1620310850
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal and 01 The is eid metal power
                                      'tag_artist'  Sinergy
                                     'tag_release'  To Hell And Back
                                       'tag_title'  Bitch Is Back
                                             'bpm'  111.824
                                    'search_title'  'back':3 'bitch':1 'is':2
                                   'search_artist'  'sinergy':1
                                  'search_release'  'and':3 'back':4 'hell':2 'to':1
                                     'search_rest'  '00dwimp':1 '00metal':2 'and':3 'eid':6 'is':5 'metal':7 'power':8 'the':4
                                    'search_combo'  '00dwimp':9 '00metal':10 'and':7C,11 'back':3A,8C 'bitch':1A 'eid':14 'hell':6C 'is':2A,13 'metal':15 'power':16 'sinergy':4B 'the':12 'to':5C
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-1', 'q-bass-4', 'q-grit-4']
                                      'lastfmtags'  ['power metal', 'female fronted metal', 'metal', 'finnish', 'heavy metal']
                                        'tag_date'  2000
                                     'discogstags'  ['hardcore', 'gabber', 'electronic']

============================== file details ==============================
                                           'mtime'  1620310849.5403247  (2021-05-06 16:20:49)
                             'size'  5898203