======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '205'
                                          'artist'  'Hans Dorrestijn'
                                     'text_people'  ''
                                         'release'  'Liederen van wanhoop en ongeloof II'
                                           'title'  "Dorrestein's huwelijkslied 1&2"
                                           'quals'  "['q-bass-1', 'q-drums-1', 'q-other-1', 'q-piano-3', 'q-vocals-4']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '20'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  ''
                                             'bpm'  '145.3'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Liederen van wanhoop en ongeloof II'
'TBPM' (BPM (beats per minute))                     '145.3'
'TIT2' (Title/songname/content description)         "Dorrestein's huwelijkslied 1&2"
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Hans Dorrestijn'
'TPE2' (Band/orchestra/accompaniment)               'Hans Dorrestijn'
'TRCK' (Track number/Position in set)               '20'
'TXXX:q-bass'                                       '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '3'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.44 dB'
'TXXX:replaygain_track_peak'                        '0.648210'

========================== row from database ==========================
                                              'id'  1538528
                                            'path'  /data/Music/Other/PrevSet/[9amusing]/Dorrestijn/Dorrestijn's huwelijkslied 1&2.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  205
                                           'genre'  
                                        'filesize'  3299838
                                           'mtime'  1662800548
                                   'redo_metaread'  0
                                        'rest_str'   PrevSet [9amusing] Dorrestijn's
                                      'tag_artist'  Hans Dorrestijn
                                     'tag_release'  Liederen van wanhoop en ongeloof II
                                       'tag_title'  Dorrestein's huwelijkslied 1&2
                                             'bpm'  145.3
                                    'search_title'  '1':5 '12':7 '2':6 'dorrestein':1 'dorresteins':3 'huwelijkslied':4 's':2
                                   'search_artist'  'dorrestijn':2 'hans':1
                                  'search_release'  'en':4 'ii':6 'liederen':1 'ongeloof':5 'van':2 'wanhoop':3
                                     'search_rest'  '9amusing':2,3 'dorrestijn':4 'dorrestijns':6 'prev':7 'prevset':1 's':5 'set':8
                                    'search_combo'  '1':5A '12':7A '2':6A '9amusing':17,18 'dorrestein':1A 'dorresteins':3A 'dorrestijn':9B,19 'dorrestijns':21 'en':13C 'hans':8B 'huwelijkslied':4A 'ii':15C 'liederen':10C 'ongeloof':14C 'prev':22 'prevset':16 's':2A,20 'set':23 'van':11C 'wanhoop':12C
                                    'tag_tracknum'  20
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['q-bass-1', 'q-drums-1', 'q-other-1', 'q-piano-3', 'q-vocals-4']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1662800548.056922  (2022-09-10 11:02:28)
                             'size'  3299838