======================== unified (from filesystem) ========================
                                         'bitrate'  '74.77'
                                        'duration'  '124'
                                          'artist'  'The Sharades'
                                     'text_people'  ''
                                         'release'  'Dimitri - Folk, Rock, Pop & Instruments'
                                           'title'  'Dumb Head  (Joe Meek)'
                                           'quals'  ("['Q-HAP-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'Q-SYN-2', 'Q-BUSY-3', 'Q-GRIT-2', 'Q-PLAY-3', 'q-bass-3', "
 "'Q-CHART-2', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'Q-MIXBEAT-2']")
                                      'lastfmtags'  "['pop', 'electro', 'retro']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'ifs-songwriter'
                                             'bpm'  '122.7'
                                             'key'  '12A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Dimitri - Folk, Rock, Pop & Instruments'
'TBPM' (BPM (beats per minute))                     '122.7'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter'
'TIT2' (Title/songname/content description)         'Dumb Head  (Joe Meek)'
'TKEY' (Initial key)                                '12A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Sharades'
'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'                                      '3'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-SYN'                                        '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:compatible_brands'                            'isomiso2mp41'
'TXXX:lastfmtags'                                   ['pop', 'electro', 'retro']
'TXXX:major_brand'                                  'isom'
'TXXX:minor_version'                                '512'
'TXXX:q-bass'                                       '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.66 dB'
'TXXX:replaygain_track_peak'                        '0.512619'
'TXXX:youtube'                                      '4UGrFr7wAUc'

========================== row from database ==========================
                                              'id'  1477380
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Dimitri/FolkRockPopInstrumentals/The Sharades - Dumb Head  (Joe Meek)-4UGrFr7wAUc.mp3
                                         'working'  None
                                         'bitrate'  74
                                    'duration_sec'  124
                                           'genre'  ifs-songwriter
                                        'filesize'  1163227
                                           'mtime'  1637329486
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm FolkRockPopInstrumentals 4UGrFr7wAUc ifs songwriter
                                      'tag_artist'  The Sharades
                                     'tag_release'  Dimitri - Folk, Rock, Pop & Instruments
                                       'tag_title'  Dumb Head  (Joe Meek)
                                             'bpm'  122.7
                                    'search_title'  'dumb':1 'head':2 'joe':3,4 'meek':5,6
                                   'search_artist'  'sharades':2 'the':1
                                  'search_release'  'dimitri':1 'folk':2,3 'instruments':7 'pop':6 'rock':4,5
                                     'search_rest'  '4ugr':9 '4ugrfr7wauc':2 'auc':11 'folk':5 'folkrockpopinstrumentals':1 'fr7w':10 'ifs':3 'instrumentals':8 'pop':7 'rock':6 'songwriter':4
                                    'search_combo'  '4ugr':24 '4ugrfr7wauc':17 'auc':26 'dimitri':9C 'dumb':1A 'folk':10C,11C,20 'folkrockpopinstrumentals':16 'fr7w':25 'head':2A 'ifs':18 'instrumentals':23 'instruments':15C 'joe':3A,4A 'meek':5A,6A 'pop':14C,22 'rock':12C,13C,21 'sharades':8B 'songwriter':19 'the':7B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  12A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'Q-MIXBEAT-2', 'Q-OLDST-3', 'Q-GRIT-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-CHART-2', 'q-drums-3', 'Q-SYN-2', 'q-other-2', 'Q-BUSY-3', 'Q-HAP-2', 'Q-PLAY-3', 'q-bass-3']
                                      'lastfmtags'  ['pop', 'electro', 'retro']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1637329486.2396414  (2021-11-19 14:44:46)
                             'size'  1163227