======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '191'
                                          'artist'  'Skymasters'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'I Love The Way You Say Goodnight (v - Annie de Reuver & Karel v/d Velde)'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['lounge', 'swing', 'under 2000 listeners', 'schellack-schatz', 'the "
 "skymasters']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1952'
                                        'comments'  ''
                                           'genre'  'prerock-vocal'
                                             'bpm'  '123.557'
                                             'key'  '4B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '123.557'
'TCON' (Content type, a.k.a. Genre)                 'prerock-vocal'
'TDRC' (Recording time)                             '1952'
'TIT2' (Title/songname/content description)         'I Love The Way You Say Goodnight (v - Annie de Reuver & Karel v/d Velde)'
'TKEY' (Initial key)                                '4B'
'TPE1' (Lead performer(s)/Soloist(s))               'Skymasters'
'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:lastfmtags'                                   ['lounge',
 'swing',
 'under 2000 listeners',
 'schellack-schatz',
 'the skymasters']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.00 dB'
'TXXX:replaygain_track_peak'                        '0.562856'

========================== row from database ==========================
                                              'id'  1448703
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1952/Skymasters - I Love The Way You Say Goodnight (v - Annie de Reuver & Karel van der Velde) 1952.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  191
                                           'genre'  prerock-vocal
                                        'filesize'  3827508
                                           'mtime'  1621853314
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1952 van der 1952 prerock vocal
                                      'tag_artist'  Skymasters
                                     'tag_release'  None
                                       'tag_title'  I Love The Way You Say Goodnight (v - Annie de Reuver & Karel v/d Velde)
                                             'bpm'  123.557
                                    'search_title'  'annie':10 'd':15 'de':11 'goodnight':7 'i':1 'karel':13 'love':2 'reuver':12 'say':6 'the':3 'v':8,9,14 'vd':16 'velde':17,18 'way':4 'you':5
                                   'search_artist'  'skymasters':1
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1952':6 'country':4 'der':8 'exotica':2 'jazz':1 'oldies':3 'prerock':9 'van':7 'vocal':10
                                    'search_combo'  '00oldiepop':24 '1952':25 'annie':10A 'country':23 'd':15A 'de':11A 'der':27 'exotica':21 'goodnight':7A 'i':1A 'jazz':20 'karel':13A 'love':2A 'oldies':22 'prerock':28 'reuver':12A 'say':6A 'skymasters':19B 'the':3A 'v':8A,9A,14A 'van':26 'vd':16A 'velde':17A,18A 'vocal':29 'way':4A 'you':5A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  4B
                                           '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-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['lounge', 'swing', 'under 2000 listeners', 'schellack-schatz', 'the skymasters']
                                        'tag_date'  1952
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621853314.3633304  (2021-05-24 12:48:34)
                             'size'  3827508