======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '154'
                                          'artist'  'Lucho Bermudez Y Su Orquesta'
                                     'text_people'  ''
                                         'release'  '248exotica'
                                           'title'  'Roberto Mendez'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-OLDST-2', 'Q-UNU-2', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-2', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['colombia', 'cuba', 'cumbia funk', 'cumbia', 'lucho bermudez']"
                                     'discogstags'  "['latin']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1960'
                                        'comments'  ''
                                           'genre'  'loc-unsorted'
                                             'bpm'  '89.930'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     '248exotica'
'TBPM' (BPM (beats per minute))                     '89.930'
'TCON' (Content type, a.k.a. Genre)                 'loc-unsorted'
'TDRC' (Recording time)                             '1960'
'TIT2' (Title/songname/content description)         'Roberto Mendez'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Lucho Bermudez Y Su Orquesta'
'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:discogstags'                                  'latin'
'TXXX:lastfmtags'                                   ['colombia', 'cuba', 'cumbia funk', 'cumbia', 'lucho bermudez']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'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'                        '+2.09 dB'
'TXXX:replaygain_track_peak'                        '0.362035'

========================== row from database ==========================
                                              'id'  978189
                                            'path'  /data/Music/Bulk/00localcharacter/248exotica/Lucho Bermudez Y Su Orquesta -- Roberto Mendez .mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  154
                                           'genre'  loc-unsorted
                                        'filesize'  6191215
                                           'mtime'  1621629617
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter loc unsorted
                                      'tag_artist'  Lucho Bermudez Y Su Orquesta
                                     'tag_release'  248exotica
                                       'tag_title'  Roberto Mendez
                                             'bpm'  89.93
                                    'search_title'  'mendez':2 'roberto':1
                                   'search_artist'  'bermudez':2 'lucho':1 'orquesta':5 'su':4 'y':3
                                  'search_release'  '248exotica':1
                                     'search_rest'  'loc':1 'unsorted':2
                                    'search_combo'  '248exotica':8C 'bermudez':4B 'loc':9 'lucho':3B 'mendez':2A 'orquesta':7B 'roberto':1A 'su':6B 'unsorted':10 'y':5B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', '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-2', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['colombia', 'cuba', 'cumbia funk', 'cumbia', 'lucho bermudez']
                                        'tag_date'  1960
                                     'discogstags'  ['latin']

============================== file details ==============================
                                           'mtime'  1621629616.8348708  (2021-05-21 22:40:16)
                             'size'  6191215