======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '268'
                                          'artist'  'Sarah Brightman'
                                     'text_people'  'José María Cano/Sarah Brightman'
                                         'release'  'french tanguerooo'
                                           'title'  'Hijo De La Luna  xx'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-OLDST-3', 'Q-UNU-2', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'Q-PLAY-2', 'q-syn-1', 'q-bass-2', 'q-busy-3', 'q-grit-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-3', 'q-vocals-3', 'q-mixbeat-1', "
 "'Q-PIANO-2']")
                                      'lastfmtags'  "['opera', 'new age', 'female vocalists', 'pop', 'classical']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'loc-eur-france'
                                             'bpm'  '135.728'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

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'TALB' (Album/Movie/Show title)                     'french tanguerooo'
'TBPM' (BPM (beats per minute))                     '135.728'
'TCOM' (Composer)                                   'José María Cano/Sarah Brightman'
'TCON' (Content type, a.k.a. Genre)                 'loc-eur-france'
'TDRC' (Recording time)                             '2000'
'TENC' (Encoded by)                                 'FrenchTanguero'
'TIT2' (Title/songname/content description)         'Hijo De La Luna  xx'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Sarah Brightman'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'EMI Music Distribution'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['opera', 'new age', 'female vocalists', 'pop', 'classical']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.17 dB'
'TXXX:replaygain_track_peak'                        '0.504524'

========================== row from database ==========================
                                              'id'  930465
                                            'path'  /data/Music/Bulk/00localcharacter/french tanguerooo/sarah brightman - hijo de la luna.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  268
                                           'genre'  loc-eur-france
                                        'filesize'  6451087
                                           'mtime'  1620536295
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter sarah brightman hijo de la luna loc eur france
                                      'tag_artist'  Sarah Brightman
                                     'tag_release'  french tanguerooo
                                       'tag_title'  Hijo De La Luna  xx
                                             'bpm'  135.728
                                    'search_title'  'de':2 'hijo':1 'la':3 'luna':4 'xx':5
                                   'search_artist'  'brightman':2 'sarah':1
                                  'search_release'  'french':1 'tanguerooo':2
                                     'search_rest'  'brightman':2 'de':4 'eur':8 'france':9 'hijo':3 'la':5 'loc':7 'luna':6 'sarah':1
                                    'search_combo'  'brightman':7B,11 'de':2A,13 'eur':17 'france':18 'french':8C 'hijo':1A,12 'la':3A,14 'loc':16 'luna':4A,15 'sarah':6B,10 'tanguerooo':9C 'xx':5A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-3', 'q-mixbeat-1', 'Q-PIANO-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['opera', 'new age', 'female vocalists', 'pop', 'classical']
                                        'tag_date'  2000
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620536295.0456529  (2021-05-09 06:58:15)
                             'size'  6451087