======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '146'
                                          'artist'  'The Irish Rovers'
                                     'text_people'  ''
                                         'release'  'Collection (disc 3)'
                                           'title'  "Under the Scotsman's Kilt"
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-LOCALNESS-2', 'Q-HHRNBTT-1', "
 "'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                                      'lastfmtags'  "['irish folk', 'irish', 'canadian', 'shenanigans', 'celtic', 'folk']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-unsorted'
                                             'bpm'  '108.879'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Collection (disc 3)'
'TBPM' (BPM (beats per minute))                     '108.879'
'TCON' (Content type, a.k.a. Genre)                 'loc-unsorted'
'TIT2' (Title/songname/content description)         "Under the Scotsman's Kilt"
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'The Irish Rovers'
'TRCK' (Track number/Position in set)               '8'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['irish folk', 'irish', 'canadian', 'shenanigans', 'celtic', 'folk']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.81 dB'
'TXXX:replaygain_track_peak'                        '0.524103'

========================== row from database ==========================
                                              'id'  1538982
                                            'path'  /data/Music/Bulk/00localcharacter/00mid-north-europe/Irish  Drinking Songs__Irish  Drinking Songs__Under The Scotsman_s Kilt.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  146
                                           'genre'  loc-unsorted
                                        'filesize'  2342738
                                           'mtime'  1620400475
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00mid north europe Drinking Songs__Irish Drinking Songs__Under Scotsman_s loc unsorted
                                      'tag_artist'  The Irish Rovers
                                     'tag_release'  Collection (disc 3)
                                       'tag_title'  Under the Scotsman's Kilt
                                             'bpm'  108.879
                                    'search_title'  'kilt':6 's':4 'scotsman':3 'scotsmans':5 'the':2 'under':1
                                   'search_artist'  'irish':2 'rovers':3 'the':1
                                  'search_release'  '3':4,5 'collection':1 'disc':2,3
                                     'search_rest'  '00mid':1 'drinking':4 'europe':3 'irish':6 'loc':11 'north':2 's':10 'scotsman':9 'songs':5,7 'under':8 'unsorted':12
                                    'search_combo'  '00mid':15 '3':13C,14C 'collection':10C 'disc':11C,12C 'drinking':18 'europe':17 'irish':8B,20 'kilt':6A 'loc':25 'north':16 'rovers':9B 's':4A,24 'scotsman':3A,23 'scotsmans':5A 'songs':19,21 'the':2A,7B 'under':1A,22 'unsorted':26
                                    'tag_tracknum'  8
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-LOCALNESS-2', 'Q-HHRNBTT-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', 'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']
                                      'lastfmtags'  ['irish folk', 'irish', 'canadian', 'shenanigans', 'celtic', 'folk']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620400475.3277416  (2021-05-07 17:14:35)
                             'size'  2342738