======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '235'
                                          'artist'  'tom dark'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  ' the yum yum tree'
                                           'quals'  ("['Q-HAP-2', 'Q-OLDST-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'q-syn-2', "
 "'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', 'q-drums-3', "
 "'q-other-1', 'q-piano-1', 'q-vocals-4', 'Q-HHRNBTT-1', 'q-mixbeat-2']")
                                      'lastfmtags'  "['comedy']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '24'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'entertaining-unsorted'
                                             'bpm'  '95.304'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '95.304'
'TCON' (Content type, a.k.a. Genre)                 'entertaining-unsorted'
'TIT2' (Title/songname/content description)         ' the yum yum tree'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'tom dark'
'TRCK' (Track number/Position in set)               '24'
'TXXX:Mp3gain_minmax'                               '094,209'
'TXXX:Mp3gain_undo'                                 '+001,+001,N'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   'comedy'
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.06 dB'
'TXXX:replaygain_track_peak'                        '0.721393'

========================== row from database ==========================
                                              'id'  1287226
                                            'path'  /data/Music/Bulk/00poprockelectronic/Clean/24 tom dark - the yum yum tree.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  235
                                           'genre'  entertaining-unsorted
                                        'filesize'  3777713
                                           'mtime'  1637330812
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Clean 24 entertaining unsorted
                                      'tag_artist'  tom dark
                                     'tag_release'  None
                                       'tag_title'   the yum yum tree
                                             'bpm'  95.304
                                    'search_title'  'the':1 'tree':3 'yum':2
                                   'search_artist'  'dark':2 'tom':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 '24':3 'clean':2 'entertaining':4 'unsorted':5
                                    'search_combo'  '00poprockelectronic':6 '24':8 'clean':7 'dark':5B 'entertaining':9 'the':1A 'tom':4B 'tree':3A 'unsorted':10 'yum':2A
                                    'tag_tracknum'  24
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-1', 'Q-HAP-2', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['comedy']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1637330811.7027247  (2021-11-19 15:06:51)
                             'size'  3777713