======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '118'
                                          'artist'  'Stereo Total'
                                     'text_people'  ''
                                         'release'  'best of dec 04'
                                           'title'  'Wir tanzen im 4-Eck'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['indie', 'german', 'electronic', 'pop', 'french']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '104.660'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'best of dec 04'
'TBPM' (BPM (beats per minute))                     '104.660'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TDRC' (Recording time)                             '2001'
'TIT2' (Title/songname/content description)         'Wir tanzen im 4-Eck'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Stereo Total'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '4'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['indie', 'german', 'electronic', 'pop', 'french']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.24 dB'
'TXXX:replaygain_track_peak'                        '0.411572'

========================== row from database ==========================
                                              'id'  1295530
                                            'path'  /data/Music/Bulk/00poprockelectronic/best-of-dec04/Wir tanzen im 4-Eck 1.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  118
                                           'genre'  electronic-unsorted
                                        'filesize'  2846212
                                           'mtime'  1621630243
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic dec04 1 electronic unsorted
                                      'tag_artist'  Stereo Total
                                     'tag_release'  best of dec 04
                                       'tag_title'  Wir tanzen im 4-Eck
                                             'bpm'  104.66
                                    'search_title'  '4':4 '4eck':6 'eck':5 'im':3 'tanzen':2 'wir':1
                                   'search_artist'  'stereo':1 'total':2
                                  'search_release'  'best':1 'dec':3 'of':2
                                     'search_rest'  '00poprockelectronic':1 '1':3 'dec04':2 'electronic':4 'unsorted':5
                                    'search_combo'  '00poprockelectronic':12 '1':14 '4':4A '4eck':6A 'best':9C 'dec':11C 'dec04':13 'eck':5A 'electronic':15 'im':3A 'of':10C 'stereo':7B 'tanzen':2A 'total':8B 'unsorted':16 'wir':1A
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'german', 'electronic', 'pop', 'french']
                                        'tag_date'  2001
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621630243.361961  (2021-05-21 22:50:43)
                             'size'  2846212