======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '139'
                                          'artist'  'Jo Basile'
                                     'text_people'  'Jo Basile'
                                         'release'  "Accordisn D' Espaqa"
                                           'title'  'En Er Mundo'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-UNU-1', 'Q-OLDST-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['diego pisador', 'musette', 'tango', 'french', 'easy listening']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '03'
                                      'tracktotal'  ''
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'loc-style-tango or milonga;loc-eur-france;mi-accordeon'
                                             'bpm'  '120.974'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     "Accordisn D' Espaqa"
'TBPM' (BPM (beats per minute))                     '120.974'
'TCON' (Content type, a.k.a. Genre)                 ['loc-style-tango or milonga', 'loc-eur-france', 'mi-accordeon']
'TDRC' (Recording time)                             '2002'
'TIT2' (Title/songname/content description)         'En Er Mundo'
'TKEY' (Initial key)                                '9A'
'TOPE' (Original artist(s)/performer(s))            'Jo Basile'
'TPE1' (Lead performer(s)/Soloist(s))               'Jo Basile'
'TRCK' (Track number/Position in set)               '03'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['diego pisador', 'musette', 'tango', 'french', 'easy listening']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'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'                        '+8.43 dB'
'TXXX:replaygain_track_peak'                        '0.321064'

========================== row from database ==========================
                                              'id'  935462
                                            'path'  /data/Music/Bulk/00localcharacter/00mid-north-europe/00french/Accordeón alegre/Jo Basile - En er mundo.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  139
                                           'genre'  loc-style-tango or milonga;loc-eur-france;mi-accordeon
                                        'filesize'  4460198
                                           'mtime'  1620528244
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00mid north europe 00french Accordeón alegre er mundo loc style tango milonga;loc eur france;mi accordeon
                                      'tag_artist'  Jo Basile
                                     'tag_release'  Accordisn D' Espaqa
                                       'tag_title'  En Er Mundo
                                             'bpm'  120.974
                                    'search_title'  'en':1 'er':2 'mundo':3
                                   'search_artist'  'basile':2 'jo':1
                                  'search_release'  'accordisn':1 'd':2,3 'espaqa':4
                                     'search_rest'  '00french':4 '00mid':1 'accordeon':5,6 'alegre':7 'er':8 'eur':17 'europe':3 'france':18,20 'loc':10,14,16 'mi':19,21 'milonga':13,15 'mundo':9 'north':2 'style':11 'tango':12
                                    'search_combo'  '00french':13 '00mid':10 'accordeon':14,15 'accordisn':6C 'alegre':16 'basile':5B 'd':7C,8C 'en':1A 'er':2A,17 'espaqa':9C 'eur':26 'europe':12 'france':27,29 'jo':4B 'loc':19,23,25 'mi':28,30 'milonga':22,24 'mundo':3A,18 'north':11 'style':20 'tango':21
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['diego pisador', 'musette', 'tango', 'french', 'easy listening']
                                        'tag_date'  2002
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620528243.762842  (2021-05-09 04:44:03)
                             'size'  4460198