======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '121'
                                          'artist'  'Stu Mitchell'
                                     'text_people'  ''
                                         'release'  'music for maniacs'
                                           'title'  'Acid'
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-1', "
 "'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                                      'lastfmtags'  "['psychedelic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  ''
                                            'date'  '1996'
                                        'comments'  ''
                                           'genre'  'set-pl-maniacs'
                                             'bpm'  '141.9'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'music for maniacs'
'TBPM' (BPM (beats per minute))                     '141.9'
'TCON' (Content type, a.k.a. Genre)                 'set-pl-maniacs'
'TDRC' (Recording time)                             '1996'
'TIT2' (Title/songname/content description)         'Acid'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Stu Mitchell'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Arf! Arf!'
'TRCK' (Track number/Position in set)               '9'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   'psychedelic rock'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.80 dB'
'TXXX:replaygain_track_peak'                        '0.473609'

========================== row from database ==========================
                                              'id'  648527
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/music for maniacs/Stu_Mitchell_-_Acid.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  121
                                           'genre'  set-pl-maniacs
                                        'filesize'  1947896
                                           'mtime'  1620347353
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Stu_Mitchell_ _Acid set pl
                                      'tag_artist'  Stu Mitchell
                                     'tag_release'  music for maniacs
                                       'tag_title'  Acid
                                             'bpm'  141.9
                                    'search_title'  'acid':1
                                   'search_artist'  'mitchell':2 'stu':1
                                  'search_release'  'for':2 'maniacs':3 'music':1
                                     'search_rest'  'acid':3 'mitchell':2 'pl':5 'set':4 'stu':1
                                    'search_combo'  'acid':1A,9 'for':5C 'maniacs':6C 'mitchell':3B,8 'music':4C 'pl':11 'set':10 'stu':2B,7
                                    'tag_tracknum'  9
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-1', 'q-other-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['psychedelic rock']
                                        'tag_date'  1996
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620347353.3790476  (2021-05-07 02:29:13)
                             'size'  1947896