======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '123'
                                          'artist'  'We Three'
                                     'text_people'  ''
                                         'release'  'Rarest of the rare, vol. 16 (Memories of days gone by)'
                                           'title'  'Take a chance on love'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-OLDST-2', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-1', 'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['band', 'pop rock', 'pop', 'folk']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '26'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'rock-pop-early'
                                             'bpm'  '136.092'
                                             'key'  '3B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Rarest of the rare, vol. 16 (Memories of days gone by)'
'TBPM' (BPM (beats per minute))                     '136.092'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop-early'
'TIT2' (Title/songname/content description)         'Take a chance on love'
'TKEY' (Initial key)                                '3B'
'TPE1' (Lead performer(s)/Soloist(s))               'We Three'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '26'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['band', 'pop rock', 'pop', 'folk']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'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'                        '+0.91 dB'
'TXXX:replaygain_track_peak'                        '0.510007'

========================== row from database ==========================
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                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/rarest of the rare vol 16 (memories of days gone by) fct mp556/26 - we three - take a chance on love.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  123
                                           'genre'  rock-pop-early
                                        'filesize'  2035519
                                           'mtime'  1620736580
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country rarest (memories fct mp556 26 we three take rock pop early
                                      'tag_artist'  We Three
                                     'tag_release'  Rarest of the rare, vol. 16 (Memories of days gone by)
                                       'tag_title'  Take a chance on love
                                             'bpm'  136.092
                                    'search_title'  'a':2 'chance':3 'love':5 'on':4 'take':1
                                   'search_artist'  'three':2 'we':1
                                  'search_release'  'by':12,13 'days':10 'gone':11 'memories':8,9 'of':2 'rare':4,5 'rarest':1 'the':3 'vol':6,7
                                     'search_rest'  '26':10 'country':4 'early':16 'exotica':2 'fct':8 'jazz':1 'memories':6,7 'mp556':9 'oldies':3 'pop':15 'rarest':5 'rock':14 'take':13 'three':12 'we':11
                                    'search_combo'  '26':30 'a':2A 'by':19C,20C 'chance':3A 'country':24 'days':17C 'early':36 'exotica':22 'fct':28 'gone':18C 'jazz':21 'love':5A 'memories':15C,16C,26,27 'mp556':29 'of':9C 'oldies':23 'on':4A 'pop':35 'rare':11C,12C 'rarest':8C,25 'rock':34 'take':1A,33 'the':10C 'three':7B,32 'vol':13C,14C 'we':6B,31
                                    'tag_tracknum'  26
                                      'num_images'  1
                                             'key'  3B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['band', 'pop rock', 'pop', 'folk']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620736580.1868372  (2021-05-11 14:36:20)
                             'size'  2035519