======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '220'
                                          'artist'  'Jurriaan Andriessen [1925-1996]'
                                     'text_people'  ''
                                         'release'  'software hardware - park 18 pal 25090'
                                           'title'  'the plotter'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-2', 'q-syn-3', 'Q-PLAY-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', "
 "'Q-PIANO-2', 'q-chart-1', 'q-drums-1', 'q-other-4', 'q-vocals-1', "
 "'q-mixbeat-2']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1978'
                                        'comments'  ''
                                           'genre'  'electronic-experimental-early'
                                             'bpm'  '122.5'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'software hardware - park 18 pal 25090'
'TBPM' (BPM (beats per minute))                     '122.5'
'TCON' (Content type, a.k.a. Genre)                 'electronic-experimental-early'
'TCOP' (Copyright message)                          'Jurriaan Andriessen [1925-1996]'
'TDRC' (Recording time)                             '1978'
'TIT2' (Title/songname/content description)         'the plotter'
'TKEY' (Initial key)                                '12B'
'TLEN' (Length)                                     '000000220087'
'TPE1' (Lead performer(s)/Soloist(s))               'Jurriaan Andriessen'
'TPE2' (Band/orchestra/accompaniment)               'Jurriaan Andriessen [1925-1996]'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.16 dB'
'TXXX:replaygain_track_peak'                        '0.894235'
'TXXX:tracknum'                                     '04'

========================== row from database ==========================
                                              'id'  1375704
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Jurriaan Andriessen [1925-1996] - jurriaan andriessen - hardware software (park, 1978)/04 the plotter.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  220
                                           'genre'  electronic-experimental-early
                                        'filesize'  8807906
                                           'mtime'  1636403704
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm jurriaan andriessen (park, 1978) 04 electronic experimental early
                                      'tag_artist'  Jurriaan Andriessen [1925-1996]
                                     'tag_release'  software hardware - park 18 pal 25090
                                       'tag_title'  the plotter
                                             'bpm'  122.5
                                    'search_title'  'plotter':2 'the':1
                                   'search_artist'  '1925':3 '19251996':5 '1996':4 'andriessen':2 'jurriaan':1
                                  'search_release'  '18':4 '25090':6 'hardware':2 'pal':5 'park':3 'software':1
                                     'search_rest'  '1978':5,6 'andriessen':2 'early':9 'electronic':7 'experimental':8 'jurriaan':1 'park':3,4
                                    'search_combo'  '18':11C '1925':5B '19251996':7B '1978':18,19 '1996':6B '25090':13C 'andriessen':4B,15 'early':22 'electronic':20 'experimental':21 'hardware':9C 'jurriaan':3B,14 'pal':12C 'park':10C,16,17 'plotter':2A 'software':8C 'the':1A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-mixbeat-2', 'Q-PIANO-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-3', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'Q-PLAY-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1978
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636403703.7941418  (2021-11-08 21:35:03)
                             'size'  8807906