======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '319'
                                          'artist'  'The Legendary Pink Dots'
                                     'text_people'  ''
                                         'release'  'Asylum'
                                           'title'  'Echo Police'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-UNU-2', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['industrial', 'electronic', 'psychedelic', 'experimental', 'avantgarde']"
                                     'discogstags'  "['electronic', 'synth-pop', 'experimental']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '01'
                                      'tracktotal'  '16'
                                            'date'  '1988'
                                        'comments'  ''
                                           'genre'  'electronic-experimental'
                                             'bpm'  '133.7'
                                             'key'  '5B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Asylum'
'TBPM' (BPM (beats per minute))                     '133.7'
'TCON' (Content type, a.k.a. Genre)                 'electronic-experimental'
'TDRC' (Recording time)                             '1988'
'TIT2' (Title/songname/content description)         'Echo Police'
'TKEY' (Initial key)                                '5B'
'TPE1' (Lead performer(s)/Soloist(s))               'The Legendary Pink Dots'
'TRCK' (Track number/Position in set)               '01/16'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['electronic', 'synth-pop', 'experimental']
'TXXX:lastfmtags'                                   ['industrial', 'electronic', 'psychedelic', 'experimental', 'avantgarde']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.26 dB'
'TXXX:replaygain_track_peak'                        '0.830951'

========================== row from database ==========================
                                              'id'  1372235
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/The Legendary Pink Dots - Legendary Pink Dots, The - Asylum [1988]/01 - Echo Police.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  319
                                           'genre'  electronic-experimental
                                        'filesize'  5115933
                                           'mtime'  1622658672
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Dots, [1988] 01 electronic experimental
                                      'tag_artist'  The Legendary Pink Dots
                                     'tag_release'  Asylum
                                       'tag_title'  Echo Police
                                             'bpm'  133.7
                                    'search_title'  'echo':1 'police':2
                                   'search_artist'  'dots':4 'legendary':2 'pink':3 'the':1
                                  'search_release'  'asylum':1
                                     'search_rest'  '1988':3,4 'dots':1,2 'electronic':5 'experimental':6
                                    'search_combo'  '1988':10,11 'asylum':7C 'dots':6B,8,9 'echo':1A 'electronic':12 'experimental':13 'legendary':4B 'pink':5B 'police':2A 'the':3B
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  5B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', '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-3', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['industrial', 'electronic', 'psychedelic', 'experimental', 'avantgarde']
                                        'tag_date'  1988
                                     'discogstags'  ['electronic', 'synth-pop', 'experimental']

============================== file details ==============================
                                           'mtime'  1622658672.1404676  (2021-06-02 20:31:12)
                             'size'  5115933