======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '417'
                                          'artist'  "Cruisin' Gang"
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Be My Life (Extended version)'
                                           'quals'  "['q-bass-1', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '0'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'pop,eighties,zomgeighties'
                                             'bpm'  '127.0'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '127.0'
'TCON' (Content type, a.k.a. Genre)                 'pop,eighties,zomgeighties'
'TIT2' (Title/songname/content description)         'Be My Life (Extended version)'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               "Cruisin' Gang"
'TRCK' (Track number/Position in set)               '0'
'TXXX:q-bass'                                       '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.75 dB'
'TXXX:replaygain_track_peak'                        '0.562689'

========================== row from database ==========================
                                              'id'  1538352
                                            'path'  /data/Music/Other/PrevSet/[7zomgeighties]/Cruisin' Gang - Be My Life (Extended version).mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  417
                                           'genre'  pop,eighties,zomgeighties
                                        'filesize'  8351433
                                           'mtime'  1662800432
                                   'redo_metaread'  0
                                        'rest_str'   PrevSet [7zomgeighties] pop,eighties,zomgeighties
                                      'tag_artist'  Cruisin' Gang
                                     'tag_release'  None
                                       'tag_title'  Be My Life (Extended version)
                                             'bpm'  127.0
                                    'search_title'  'be':1 'extended':4,5 'life':3 'my':2 'version':6,7
                                   'search_artist'  'cruisin':1,2 'gang':3
                                  'search_release'  
                                     'search_rest'  '7zomgeighties':2,3 'eighties':5,8 'pop':4,7 'prev':10 'prevset':1 'set':11 'zomgeighties':6,9
                                    'search_combo'  '7zomgeighties':12,13 'be':1A 'cruisin':8B,9B 'eighties':15,18 'extended':4A,5A 'gang':10B 'life':3A 'my':2A 'pop':14,17 'prev':20 'prevset':11 'set':21 'version':6A,7A 'zomgeighties':16,19
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['q-bass-1', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1662800431.5366833  (2022-09-10 11:00:31)
                             'size'  8351433