======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '98'
                                          'artist'  'The Spotnicks'
                                     'text_people'  ''
                                         'release'  'Live in Sankei Hall 1966'
                                           'title'  "Le dernier train de l'espace"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'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-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['instrumental', 'surf', 'ed hits', 'guitar', '60s']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  ''
                                            'date'  '1966'
                                        'comments'  ''
                                           'genre'  'rock-pop-surf'
                                             'bpm'  '108.0'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Live in Sankei Hall 1966'
'TBPM' (BPM (beats per minute))                     '108.0'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop-surf'
'TDRC' (Recording time)                             '1966'
'TIT2' (Title/songname/content description)         "Le dernier train de l'espace"
'TKEY' (Initial key)                                '8A'
'TLEN' (Length)                                     '98142'
'TMED' (Media type)                                 'DIG'
'TPE1' (Lead performer(s)/Soloist(s))               'The Spotnicks'
'TRCK' (Track number/Position in set)               '8'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['instrumental', 'surf', 'ed hits', 'guitar', '60s']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.65 dB'
'TXXX:replaygain_track_peak'                        '0.600409'

========================== row from database ==========================
                                              'id'  1503141
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/The Spotnicks-1962-1990-23 cd/The Spotnicks-1966-Live In Sankei Hall/The Spotnicks - 08. Le Dernier Train De L_espace.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  98
                                           'genre'  rock-pop-surf
                                        'filesize'  1963904
                                           'mtime'  1620736681
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 1962 1990 23 cd In 08. Dernier Train De L_espace rock pop surf
                                      'tag_artist'  The Spotnicks
                                     'tag_release'  Live in Sankei Hall 1966
                                       'tag_title'  Le dernier train de l'espace
                                             'bpm'  108.0
                                    'search_title'  'de':4 'dernier':2 'espace':6 'l':5 'le':1 'lespace':7 'train':3
                                   'search_artist'  'spotnicks':2 'the':1
                                  'search_release'  '1966':5 'hall':4 'in':2 'live':1 'sankei':3
                                     'search_rest'  '08':6,7 '1962':1 '1990':2 '23':3 'cd':4 'de':10 'dernier':8 'espace':12 'in':5 'l':11 'pop':14 'rock':13 'surf':15 'train':9
                                    'search_combo'  '08':20,21 '1962':15 '1966':14C '1990':16 '23':17 'cd':18 'de':4A,24 'dernier':2A,22 'espace':6A,26 'hall':13C 'in':11C,19 'l':5A,25 'le':1A 'lespace':7A 'live':10C 'pop':28 'rock':27 'sankei':12C 'spotnicks':9B 'surf':29 'the':8B 'train':3A,23
                                    'tag_tracknum'  8
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', '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-4', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['instrumental', 'surf', 'ed hits', 'guitar', '60s']
                                        'tag_date'  1966
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620736681.261352  (2021-05-11 14:38:01)
                             'size'  1963904