======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '197'
                                          'artist'  'kai tracid'
                                     'text_people'  ''
                                         'release'  "clubtrance '99"
                                           'title'  'dance for eternity'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-4', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-4']")
                                      'lastfmtags'  "['dance', 'trance', 'techno', 'hard trance', 'acid', 'electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'electronic-th-trance'
                                             'bpm'  '136.001'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     "clubtrance '99"
'TBPM' (BPM (beats per minute))                     '136.001'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-trance'
'TDRC' (Recording time)                             '1999'
'TIT2' (Title/songname/content description)         'dance for eternity'
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               'kai tracid'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Mp3gain_minmax'                               '140,197'
'TXXX:Mp3gain_undo'                                 '+002,+002,N'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:Tracknum'                                     '02'
'TXXX:lastfmtags'                                   ['dance', 'trance', 'techno', 'hard trance', 'acid', 'electronic']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '4'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '4'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.25 dB'
'TXXX:replaygain_track_peak'                        '0.682069'

========================== row from database ==========================
                                              'id'  1531932
                                            'path'  /data/Music/Bulk/00poprockelectronic-generic-dance-trapbeat/Clubtrance _99/clubtrance _99 - 02 - kai tracid - dance for eternity.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  197
                                           'genre'  electronic-th-trance
                                        'filesize'  3161093
                                           'mtime'  1621627138
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic generic trapbeat Clubtrance _99 _99 02 electronic th
                                      'tag_artist'  kai tracid
                                     'tag_release'  clubtrance '99
                                       'tag_title'  dance for eternity
                                             'bpm'  136.001
                                    'search_title'  'dance':1 'eternity':3 'for':2
                                   'search_artist'  'kai':1 'tracid':2
                                  'search_release'  '99':2,3 'clubtrance':1
                                     'search_rest'  '00poprockelectronic':1 '99':5 'clubtrance':4 'electronic':6 'generic':2 'th':7 'trapbeat':3
                                    'search_combo'  '00poprockelectronic':9 '99':7C,8C,13 'clubtrance':6C,12 'dance':1A 'electronic':14 'eternity':3A 'for':2A 'generic':10 'kai':4B 'th':15 'tracid':5B 'trapbeat':11
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-4', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-4', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['dance', 'trance', 'techno', 'hard trance', 'acid', 'electronic']
                                        'tag_date'  1999
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621627138.3457952  (2021-05-21 21:58:58)
                             'size'  3161093