======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '139'
                                          'artist'  'Annette with The Afterbeats'
                                     'text_people'  ''
                                         'release'  'Goede Singletijd'
                                           'title'  'My Heart Became Of Age'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-2', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1959'
                                        'comments'  ''
                                           'genre'  'prerock-vocal'
                                             'bpm'  '92.772'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         '59-424 POS 74'
'COMM:ID3v1 Comment:XXX'                            '59-424 POS 74'
'TALB' (Album/Movie/Show title)                     'Goede Singletijd'
'TBPM' (BPM (beats per minute))                     '92.772'
'TCON' (Content type, a.k.a. Genre)                 'prerock-vocal'
'TDRC' (Recording time)                             '1959'
'TIT2' (Title/songname/content description)         'My Heart Became Of Age'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Annette with The Afterbeats'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.04 dB'
'TXXX:replaygain_track_peak'                        '0.352942'

========================== row from database ==========================
                                              'id'  1434596
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1959/59-424 - Annette with The Afterbeats - My Heart Became Of Age.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  139
                                           'genre'  prerock-vocal
                                        'filesize'  5570432
                                           'mtime'  1621853366
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1959 59 424 prerock vocal
                                      'tag_artist'  Annette with The Afterbeats
                                     'tag_release'  Goede Singletijd
                                       'tag_title'  My Heart Became Of Age
                                             'bpm'  92.772
                                    'search_title'  'age':5 'became':3 'heart':2 'my':1 'of':4
                                   'search_artist'  'afterbeats':4 'annette':1 'the':3 'with':2
                                  'search_release'  'goede':1 'singletijd':2
                                     'search_rest'  '00oldiepop':5 '1959':6 '424':8 '59':7 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':9 'vocal':10
                                    'search_combo'  '00oldiepop':16 '1959':17 '424':19 '59':18 'afterbeats':9B 'age':5A 'annette':6B 'became':3A 'country':15 'exotica':13 'goede':10C 'heart':2A 'jazz':12 'my':1A 'of':4A 'oldies':14 'prerock':20 'singletijd':11C 'the':8B 'vocal':21 'with':7B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1959
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621853366.2768118  (2021-05-24 12:49:26)
                             'size'  5570432