======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '296'
                                          'artist'  'Wir Sind Helden'
                                     'text_people'  ''
                                         'release'  'Die Reklamation'
                                           'title'  'Du Erkennst Mich Nich Wieder'
                                           'quals'  "['q-bass-4', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-2']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'Pop'
                                             'bpm'  '101.1'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Die Reklamation'
'TBPM' (BPM (beats per minute))                     '101.1'
'TCON' (Content type, a.k.a. Genre)                 'Pop'
'TIT2' (Title/songname/content description)         'Du Erkennst Mich Nich Wieder'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Wir Sind Helden'
'TRCK' (Track number/Position in set)               '5'
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.69 dB'
'TXXX:replaygain_track_peak'                        '0.378840'

========================== row from database ==========================
                                              'id'  1538625
                                            'path'  /data/Music/Other/PrevSet/[0yay1]/Wir Sind Helden/du erkennst mich nich wieder.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  296
                                           'genre'  Pop
                                        'filesize'  7117040
                                           'mtime'  1662800366
                                   'redo_metaread'  0
                                        'rest_str'   PrevSet [0yay1] du erkennst mich nich wieder Pop
                                      'tag_artist'  Wir Sind Helden
                                     'tag_release'  Die Reklamation
                                       'tag_title'  Du Erkennst Mich Nich Wieder
                                             'bpm'  101.1
                                    'search_title'  'du':1 'erkennst':2 'mich':3 'nich':4 'wieder':5
                                   'search_artist'  'helden':3 'sind':2 'wir':1
                                  'search_release'  'die':1 'reklamation':2
                                     'search_rest'  '0yay1':2,3 'du':4 'erkennst':5 'mich':6 'nich':7 'pop':9 'prev':10 'prevset':1 'set':11 'wieder':8
                                    'search_combo'  '0yay1':12,13 'die':9C 'du':1A,14 'erkennst':2A,15 'helden':8B 'mich':3A,16 'nich':4A,17 'pop':19 'prev':20 'prevset':11 'reklamation':10C 'set':21 'sind':7B 'wieder':5A,18 'wir':6B
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['q-bass-4', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-2']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1662800365.8508034  (2022-09-10 10:59:25)
                             'size'  7117040