======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '254'
                                          'artist'  'Double Play'
                                     'text_people'  ''
                                         'release'  'french tanguerooo'
                                           'title'  "L'italiano (club mix)"
                                           'quals'  ("['Q-HAP-3', 'Q-OLDST-2', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'loc-eur-france'
                                             'bpm'  '130.146'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'french tanguerooo'
'TBPM' (BPM (beats per minute))                     '130.146'
'TCON' (Content type, a.k.a. Genre)                 'loc-eur-france'
'TDRC' (Recording time)                             '1999'
'TIT2' (Title/songname/content description)         "L'italiano (club mix)"
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               'Double Play'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.22 dB'
'TXXX:replaygain_track_peak'                        '0.574421'

========================== row from database ==========================
                                              'id'  1512276
                                            'path'  /data/Music/Bulk/00localcharacter/french tanguerooo/techno-italian-double play - l_italiano (club mix) (2).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  254
                                           'genre'  loc-eur-france
                                        'filesize'  4079405
                                           'mtime'  1620536296
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter techno double play l_italiano (2) loc eur france
                                      'tag_artist'  Double Play
                                     'tag_release'  french tanguerooo
                                       'tag_title'  L'italiano (club mix)
                                             'bpm'  130.146
                                    'search_title'  'club':4,5 'italiano':2 'l':1 'litaliano':3 'mix':6,7
                                   'search_artist'  'double':1 'play':2
                                  'search_release'  'french':1 'tanguerooo':2
                                     'search_rest'  '2':6,7 'double':2 'eur':9 'france':10 'italiano':5 'l':4 'loc':8 'play':3 'techno':1
                                    'search_combo'  '2':17,18 'club':4A,5A 'double':8B,13 'eur':20 'france':21 'french':10C 'italiano':2A,16 'l':1A,15 'litaliano':3A 'loc':19 'mix':6A,7A 'play':9B,14 'tanguerooo':11C 'techno':12
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-1', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1999
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620536296.4402924  (2021-05-09 06:58:16)
                             'size'  4079405