======================== unified (from filesystem) ========================
                                         'bitrate'  '78.411'
                                        'duration'  '134'
                                          'artist'  'Diane Hildebrand'
                                     'text_people'  ''
                                         'release'  'Dimitri - Folk, Rock, Pop & Instruments'
                                           'title'  'From Rea Who Died Last Summer'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'Q-SYN-2', 'Q-BUSY-3', 'Q-GRIT-2', 'Q-PLAY-3', 'q-bass-4', "
 "'Q-CHART-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'Q-MIXBEAT-2']")
                                      'lastfmtags'  "['folk rock', 'folk-rock', 'm60rock', 'folk-country']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1969'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter'
                                             'bpm'  '104.9'
                                             'key'  '7B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Dimitri - Folk, Rock, Pop & Instruments'
'TBPM' (BPM (beats per minute))                     '104.9'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter'
'TDRC' (Recording time)                             '1969'
'TIT2' (Title/songname/content description)         'From Rea Who Died Last Summer'
'TKEY' (Initial key)                                '7B'
'TPE1' (Lead performer(s)/Soloist(s))               'Diane Hildebrand'
'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'                                  'rock'
'TXXX:lastfmtags'                                   ['folk rock', 'folk-rock', 'm60rock', 'folk-country']
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.95 dB'
'TXXX:replaygain_track_peak'                        '0.442765'
'TXXX:youtube'                                      'iR0rmdbXn-U'

========================== row from database ==========================
                                              'id'  1477140
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Dimitri/FolkRockPopInstrumentals/Diane Hildebrand - From Rea Who Died Last Summer (1969)-iR0rmdbXn-U.mp3
                                         'working'  None
                                         'bitrate'  78
                                    'duration_sec'  134
                                           'genre'  ifs-songwriter
                                        'filesize'  1319661
                                           'mtime'  1637329482
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm FolkRockPopInstrumentals (1969) iR0rmdbXn U ifs songwriter
                                      'tag_artist'  Diane Hildebrand
                                     'tag_release'  Dimitri - Folk, Rock, Pop & Instruments
                                       'tag_title'  From Rea Who Died Last Summer
                                             'bpm'  104.9
                                    'search_title'  'died':4 'from':1 'last':5 'rea':2 'summer':6 'who':3
                                   'search_artist'  'diane':1 'hildebrand':2
                                  'search_release'  'dimitri':1 'folk':2,3 'instruments':7 'pop':6 'rock':4,5
                                     'search_rest'  '1969':2,3 'folk':8 'folkrockpopinstrumentals':1 'i':12 'ifs':6 'instrumentals':11 'ir0rmdbxn':4 'pop':10 'r0rmdb':13 'rock':9 'songwriter':7 'u':5 'xn':14
                                    'search_combo'  '1969':17,18 'diane':7B 'died':4A 'dimitri':9C 'folk':10C,11C,23 'folkrockpopinstrumentals':16 'from':1A 'hildebrand':8B 'i':27 'ifs':21 'instrumentals':26 'instruments':15C 'ir0rmdbxn':19 'last':5A 'pop':14C,25 'r0rmdb':28 'rea':2A 'rock':12C,13C,24 'songwriter':22 'summer':6A 'u':20 'who':3A 'xn':29
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  7B
                                           '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-1', 'Q-SYN-2', 'q-other-3', 'Q-BUSY-3', 'Q-HAP-2', 'Q-PLAY-3', 'q-bass-4']
                                      'lastfmtags'  ['folk rock', 'folk-rock', 'm60rock', 'folk-country']
                                        'tag_date'  1969
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1637329482.3335726  (2021-11-19 14:44:42)
                             'size'  1319661