======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '1146'
                                          'artist'  'Pete Namlook & Klaus Schulze'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Set The Controls For The Heart Of The Earth. Part I'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-3', 'q-busy-2', 'q-grit-3', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  ("['dark ambient', '77davez all tracks', 'electronic', 'progressive "
 "electronic', 'ambient']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'electronic-drone'
                                             'bpm'  '112.1'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '112.1'
'TCON' (Content type, a.k.a. Genre)                 'electronic-drone'
'TDRC' (Recording time)                             '2002'
'TIT2' (Title/songname/content description)         'Set The Controls For The Heart Of The Earth. Part I'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Pete Namlook & Klaus Schulze'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['dark ambient',
 '77davez all tracks',
 'electronic',
 'progressive electronic',
 'ambient']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.98 dB'
'TXXX:replaygain_track_peak'                        '0.625286'

========================== row from database ==========================
                                              'id'  1425655
                                            'path'  /data/Music/Bulk/00poprockelectronic/00drone/Pete Namlook & Klaus Schulze - Set The Controls For The Heart Of The Earth. Part I.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  1146
                                           'genre'  electronic-drone
                                        'filesize'  22939768
                                           'mtime'  1636913099
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00drone electronic drone
                                      'tag_artist'  Pete Namlook & Klaus Schulze
                                     'tag_release'  None
                                       'tag_title'  Set The Controls For The Heart Of The Earth. Part I
                                             'bpm'  112.1
                                    'search_title'  'controls':3 'earth':7,8 'for':4 'heart':5 'i':10 'of':6 'part':9 'set':1 'the':2
                                   'search_artist'  'klaus':3 'namlook':2 'pete':1 'schulze':4
                                  'search_release'  
                                     'search_rest'  '00drone':2 '00poprockelectronic':1 'drone':4 'electronic':3
                                    'search_combo'  '00drone':16 '00poprockelectronic':15 'controls':3A 'drone':18 'earth':7A,8A 'electronic':17 'for':4A 'heart':5A 'i':10A 'klaus':13B 'namlook':12B 'of':6A 'part':9A 'pete':11B 'schulze':14B 'set':1A 'the':2A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-3', 'q-syn-3', 'q-chart-2', 'q-other-4', 'Q-HAP-2', 'q-bass-3', 'q-grit-3']
                                      'lastfmtags'  ['dark ambient', '77davez all tracks', 'electronic', 'progressive electronic', 'ambient']
                                        'tag_date'  2002
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636913099.062487  (2021-11-14 19:04:59)
                             'size'  22939768