======================== unified (from filesystem) ========================
                                         'bitrate'  '121.144'
                                        'duration'  '218'
                                          'artist'  'Quarteto Nova Era'
                                     'text_people'  ''
                                         'release'  'Dimitri - Folk, Rock, Pop & Instruments'
                                           'title'  'De Repente'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-OLDST-2', "
 "'Q-HHRNBTT-1', 'Q-SYN-2', 'Q-BUSY-3', 'Q-GRIT-2', 'Q-PLAY-3', 'q-bass-4', "
 "'Q-CHART-2', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'Q-MIXBEAT-2']")
                                      'lastfmtags'  "['brazil', 'brazilian', 'dikovato', 'bezuderzhno']"
                                     'discogstags'  "['folk, world, & country', 'latin', 'psychedelic rock', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1969'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter'
                                             'bpm'  '104.6'
                                             'key'  '1B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Dimitri - Folk, Rock, Pop & Instruments'
'TBPM' (BPM (beats per minute))                     '104.6'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter'
'TDRC' (Recording time)                             '1969'
'TIT2' (Title/songname/content description)         'De Repente'
'TKEY' (Initial key)                                '1B'
'TPE1' (Lead performer(s)/Soloist(s))               'Quarteto Nova Era'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TSSE' (Software/Hardware and settings used for encoding)  'Lavf58.45.100'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-SYN'                                        '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['folk, world, & country', 'latin', 'psychedelic rock', 'rock']
'TXXX:lastfmtags'                                   ['brazil', 'brazilian', 'dikovato', 'bezuderzhno']
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-2.38 dB'
'TXXX:replaygain_track_peak'                        '0.525248'
'TXXX:youtube'                                      'RubTCgaqDBY'

========================== row from database ==========================
                                              'id'  1477609
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Dimitri/FolkRockPopInstrumentals/Quarteto Nova Era - De Repente (1969)-RubTCgaqDBY.mp3
                                         'working'  None
                                         'bitrate'  121
                                    'duration_sec'  218
                                           'genre'  ifs-songwriter
                                        'filesize'  3316175
                                           'mtime'  1637329486
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm FolkRockPopInstrumentals (1969) RubTCgaqDBY ifs songwriter
                                      'tag_artist'  Quarteto Nova Era
                                     'tag_release'  Dimitri - Folk, Rock, Pop & Instruments
                                       'tag_title'  De Repente
                                             'bpm'  104.6
                                    'search_title'  'de':1 'repente':2
                                   'search_artist'  'era':3 'nova':2 'quarteto':1
                                  'search_release'  'dimitri':1 'folk':2,3 'instruments':7 'pop':6 'rock':4,5
                                     'search_rest'  '1969':2,3 'dby':13 'folk':7 'folkrockpopinstrumentals':1 'ifs':5 'instrumentals':10 'pop':9 'rock':8 'rub':11 'rubtcgaqdby':4 'songwriter':6 'tcgaq':12
                                    'search_combo'  '1969':14,15 'dby':25 'de':1A 'dimitri':6C 'era':5B 'folk':7C,8C,19 'folkrockpopinstrumentals':13 'ifs':17 'instrumentals':22 'instruments':12C 'nova':4B 'pop':11C,21 'quarteto':3B 'repente':2A 'rock':9C,10C,20 'rub':23 'rubtcgaqdby':16 'songwriter':18 'tcgaq':24
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  1B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'Q-MIXBEAT-2', 'Q-OLDST-2', 'Q-GRIT-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-CHART-2', 'q-drums-2', 'Q-SYN-2', 'q-other-3', 'Q-BUSY-3', 'Q-HAP-2', 'Q-PLAY-3', 'q-bass-4']
                                      'lastfmtags'  ['brazil', 'brazilian', 'dikovato', 'bezuderzhno']
                                        'tag_date'  1969
                                     'discogstags'  ['folk, world, & country', 'latin', 'psychedelic rock', 'rock']

============================== file details ==============================
                                           'mtime'  1637329485.8079267  (2021-11-19 14:44:45)
                             'size'  3316175