======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '232'
                                          'artist'  'German Cars Vs. American Homes'
                                     'text_people'  ''
                                         'release'  'missing teens'
                                           'title'  'bum bum (cutest)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-OLDST-3', 'Q-LOCALNESS-1', 'Q-UNU-2', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['cool finds', 'adam sandler', 'lmno', 'strong bad', 'eddie izzard']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'entertaining-songwriters'
                                             'bpm'  '100.009'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'missing teens'
'TBPM' (BPM (beats per minute))                     '100.009'
'TCON' (Content type, a.k.a. Genre)                 'entertaining-songwriters'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'bum bum (cutest)'
'TKEY' (Initial key)                                '11A'
'TPE1' (Lead performer(s)/Soloist(s))               'German Cars Vs. American Homes'
'TRCK' (Track number/Position in set)               '1'
'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:lastfmtags'                                   ['cool finds', 'adam sandler', 'lmno', 'strong bad', 'eddie izzard']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.24 dB'
'TXXX:replaygain_track_peak'                        '0.764555'

========================== row from database ==========================
                                              'id'  1316698
                                            'path'  /data/Music/Bulk/00spent/German Cars Vs. American Homes/German Cars Vs. American Homes - bum bum (cutest).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  232
                                           'genre'  entertaining-songwriters
                                        'filesize'  3722780
                                           'mtime'  1636913899
                                   'redo_metaread'  0
                                        'rest_str'   00spent entertaining songwriters
                                      'tag_artist'  German Cars Vs. American Homes
                                     'tag_release'  missing teens
                                       'tag_title'  bum bum (cutest)
                                             'bpm'  100.009
                                    'search_title'  'bum':1 'cutest':2,3
                                   'search_artist'  'american':5 'cars':2 'german':1 'homes':6 'vs':3,4
                                  'search_release'  'missing':1 'teens':2
                                     'search_rest'  '00spent':1 'entertaining':2 'songwriters':3
                                    'search_combo'  '00spent':12 'american':8B 'bum':1A 'cars':5B 'cutest':2A,3A 'entertaining':13 'german':4B 'homes':9B 'missing':10C 'songwriters':14 'teens':11C 'vs':6B,7B
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['cool finds', 'adam sandler', 'lmno', 'strong bad', 'eddie izzard']
                                        'tag_date'  2000
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636913899.2231777  (2021-11-14 19:18:19)
                             'size'  3722780