======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '183'
                                          'artist'  'Claude Vasori'
                                     'text_people'  ''
                                         'release'  'Musique pop pour images en mouvement'
                                           'title'  "Pop-Fugue (lib. FR '71)"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-3', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['folk', 'all', 'funk', 'library music', 'french']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '11'
                                      'tracktotal'  '12'
                                            'date'  '1971'
                                        'comments'  ''
                                           'genre'  'funk or soul'
                                             'bpm'  '133.2'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Musique pop pour images en mouvement'
'TBPM' (BPM (beats per minute))                     '133.2'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul'
'TDRC' (Recording time)                             '1971'
'TIT2' (Title/songname/content description)         "Pop-Fugue (lib. FR '71)"
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'Claude Vasori'
'TRCK' (Track number/Position in set)               '11/12'
'TSSE' (Software/Hardware and settings used for encoding)  'LAME 32bits version 3.98 (http://www.mp3dev.org/)'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['folk', 'all', 'funk', 'library music', 'french']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+2.87 dB'
'TXXX:replaygain_track_peak'                        '0.419879'

========================== row from database ==========================
                                              'id'  1524490
                                            'path'  /data/Music/Bulk/00popandrock-swing-funk-soul/EASY Instr 70_s/Claude Vasori - Pop-Fugue (lib. FR _71).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  183
                                           'genre'  funk or soul
                                        'filesize'  7353218
                                           'mtime'  1621629999
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock swing funk soul EASY Instr 70_s _71) funk soul
                                      'tag_artist'  Claude Vasori
                                     'tag_release'  Musique pop pour images en mouvement
                                       'tag_title'  Pop-Fugue (lib. FR '71)
                                             'bpm'  133.2
                                    'search_title'  '71':7,8 'fr':6 'fugue':2 'lib':4,5 'pop':1 'popfugue':3
                                   'search_artist'  'claude':1 'vasori':2
                                  'search_release'  'en':5 'images':4 'mouvement':6 'musique':1 'pop':2 'pour':3
                                     'search_rest'  '70':6 '71':8,9 'easy':4 'funk':2 'instr':5 's':7 'soul':3 'swing':1
                                    'search_combo'  '70':22 '71':7A,8A,24,25 'claude':9B 'easy':20 'en':15C 'fr':6A 'fugue':2A 'funk':18 'images':14C 'instr':21 'lib':4A,5A 'mouvement':16C 'musique':11C 'pop':1A,12C 'popfugue':3A 'pour':13C 's':23 'soul':19 'swing':17 'vasori':10B
                                    'tag_tracknum'  11
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['folk', 'all', 'funk', 'library music', 'french']
                                        'tag_date'  1971
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621629999.0392568  (2021-05-21 22:46:39)
                             'size'  7353218