======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '312'
                                          'artist'  'Goran Bregović'
                                     'text_people'  ''
                                         'release'  'Underground'
                                           'title'  'Underground Tango'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['soundtrack', 'gypsy', 'balkan', 'folk', 'ethnic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  ''
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'loc-style-gypsy or balkan or klezmer;mi-brass'
                                             'bpm'  '142.307'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Underground'
'TBPM' (BPM (beats per minute))                     '142.307'
'TCON' (Content type, a.k.a. Genre)                 ['loc-style-gypsy or balkan or klezmer', 'mi-brass']
'TDRC' (Recording time)                             '1995'
'TIT2' (Title/songname/content description)         'Underground Tango'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Goran Bregović'
'TRCK' (Track number/Position in set)               '9'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['soundtrack', 'gypsy', 'balkan', 'folk', 'ethnic']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.35 dB'
'TXXX:replaygain_track_peak'                        '0.513087'

========================== row from database ==========================
                                              'id'  925171
                                            'path'  /data/Music/Bulk/00localcharacter/00mid-north-europe/Goran Bregovic/Underground OST 1995/09 - Undeground Tango.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  312
                                           'genre'  loc-style-gypsy or balkan or klezmer;mi-brass
                                        'filesize'  5009106
                                           'mtime'  1620528160
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00mid north europe Bregovic OST 1995 09 Undeground loc style gypsy balkan klezmer;mi brass
                                      'tag_artist'  Goran Bregović
                                     'tag_release'  Underground
                                       'tag_title'  Underground Tango
                                             'bpm'  142.307
                                    'search_title'  'tango':2 'underground':1
                                   'search_artist'  'bregovic':2,3 'goran':1
                                  'search_release'  'underground':1
                                     'search_rest'  '00mid':1 '1995':6 'balkan':11 'brass':16 'bregovic':4 'europe':3 'gypsy':10 'klezmer':12,14 'loc':8 'mi':13,15 'north':2 'ost':5 'style':9 'undeground':7
                                    'search_combo'  '00mid':7 '1995':12 'balkan':17 'brass':22 'bregovic':4B,5B,10 'europe':9 'goran':3B 'gypsy':16 'klezmer':18,20 'loc':14 'mi':19,21 'north':8 'ost':11 'style':15 'tango':2A 'undeground':13 'underground':1A,6C
                                    'tag_tracknum'  9
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-3', 'q-other-4', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['soundtrack', 'gypsy', 'balkan', 'folk', 'ethnic']
                                        'tag_date'  1995
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620528160.2099507  (2021-05-09 04:42:40)
                             'size'  5009106