======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '242'
                                          'artist'  'Kylie Minogue'
                                     'text_people'  'Matt Aitken_Mike Stock_Pete Waterman'
                                         'release'  'Ultimate Kylie (disc 1)'
                                           'title'  'Je Ne Sais Pas Pourquoi'
                                           'quals'  "['q-bass-3', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '11'
                                      'tracktotal'  '15'
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'Pop'
                                             'bpm'  '116.0'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Ultimate Kylie (disc 1)'
'TBPM' (BPM (beats per minute))                     '116.0'
'TCOM' (Composer)                                   'Matt Aitken_Mike Stock_Pete Waterman'
'TCON' (Content type, a.k.a. Genre)                 'Pop'
'TDRC' (Recording time)                             '2005'
'TIT2' (Title/songname/content description)         'Je Ne Sais Pas Pourquoi'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Kylie Minogue'
'TPE2' (Band/orchestra/accompaniment)               'Kylie Minogue'
'TPUB' (Publisher)                                  'Capitol'
'TRCK' (Track number/Position in set)               '11/15'
'TXXX:q-bass'                                       '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.31 dB'
'TXXX:replaygain_track_peak'                        '0.478479'

========================== row from database ==========================
                                              'id'  1538658
                                            'path'  /data/Music/Other/PrevSet/[7zomgeighties]/Kylie Minogue - Je Ne Sais Pas Pourquoi.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  242
                                           'genre'  Pop
                                        'filesize'  5836412
                                           'mtime'  1662800493
                                   'redo_metaread'  0
                                        'rest_str'   PrevSet [7zomgeighties] Pop
                                      'tag_artist'  Kylie Minogue
                                     'tag_release'  Ultimate Kylie (disc 1)
                                       'tag_title'  Je Ne Sais Pas Pourquoi
                                             'bpm'  116.0
                                    'search_title'  'je':1 'ne':2 'pas':4 'pourquoi':5 'sais':3
                                   'search_artist'  'kylie':1 'minogue':2
                                  'search_release'  '1':5,6 'disc':3,4 'kylie':2 'ultimate':1
                                     'search_rest'  '7zomgeighties':2,3 'pop':4 'prev':5 'prevset':1 'set':6
                                    'search_combo'  '1':12C,13C '7zomgeighties':15,16 'disc':10C,11C 'je':1A 'kylie':6B,9C 'minogue':7B 'ne':2A 'pas':4A 'pop':17 'pourquoi':5A 'prev':18 'prevset':14 'sais':3A 'set':19 'ultimate':8C
                                    'tag_tracknum'  11
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['q-bass-3', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3']
                                      'lastfmtags'  []
                                        'tag_date'  2005
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1662800492.9507008  (2022-09-10 11:01:32)
                             'size'  5836412