======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '352'
                                          'artist'  'midisport'
                                     'text_people'  ''
                                         'release'  '14 footballers in milkchocolate'
                                           'title'  'desafinado (copacabana)'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-OLDST-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-3', "
 "'Q-JZFKS-2', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-4', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['under 2000 listeners', 'bossanova', 'electronic', 'elt', 'experimental "
 "electronic']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '02'
                                      'tracktotal'  ''
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'loc-unsorted'
                                             'bpm'  '87.672'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     '14 footballers in milkchocolate'
'TBPM' (BPM (beats per minute))                     '87.672'
'TCON' (Content type, a.k.a. Genre)                 'loc-unsorted'
'TDRC' (Recording time)                             '2001'
'TIT2' (Title/songname/content description)         'desafinado (copacabana)'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'midisport'
'TRCK' (Track number/Position in set)               '02'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['under 2000 listeners',
 'bossanova',
 'electronic',
 'elt',
 'experimental electronic']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.16 dB'
'TXXX:replaygain_track_peak'                        '0.736722'

========================== row from database ==========================
                                              'id'  1253176
                                            'path'  /data/Music/Bulk/00localcharacter/Midisport/14 Footballers in Milkchocolat/midisport - 02 - desafinado (copacabana).mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  352
                                           'genre'  loc-unsorted
                                        'filesize'  11282314
                                           'mtime'  1621629743
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter Midisport Footballers Milkchocolat 02 loc unsorted
                                      'tag_artist'  midisport
                                     'tag_release'  14 footballers in milkchocolate
                                       'tag_title'  desafinado (copacabana)
                                             'bpm'  87.672
                                    'search_title'  'copacabana':2,3 'desafinado':1
                                   'search_artist'  'midisport':1
                                  'search_release'  'footballers':1 'in':2 'milkchocolate':3
                                     'search_rest'  'footballers':2 'loc':4 'midisport':1 'milkchocolat':3 'unsorted':5
                                    'search_combo'  'copacabana':2A,3A 'desafinado':1A 'footballers':5C,9 'in':6C 'loc':11 'midisport':4B,8 'milkchocolat':10 'milkchocolate':7C 'unsorted':12
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-4', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['under 2000 listeners', 'bossanova', 'electronic', 'elt', 'experimental electronic']
                                        'tag_date'  2001
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621629742.5661044  (2021-05-21 22:42:22)
                             'size'  11282314