======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '129'
                                          'artist'  'Nina Hagen'
                                     'text_people'  ''
                                         'release'  'Unbehagen'
                                           'title'  'Wau Wau'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-LOCALNESS-2', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['german', 'new wave', 'post punk', 'punk', 'female vocalists']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  ''
                                            'date'  '1980'
                                        'comments'  ''
                                           'genre'  'electronic-we-new wave or post punk'
                                             'bpm'  '90.980'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Unbehagen'
'TBPM' (BPM (beats per minute))                     '90.980'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-new wave or post punk'
'TDRC' (Recording time)                             '1980'
'TIT2' (Title/songname/content description)         'Wau Wau'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Nina Hagen'
'TRCK' (Track number/Position in set)               '7'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['german', 'new wave', 'post punk', 'punk', 'female vocalists']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.70 dB'
'TXXX:replaygain_track_peak'                        '0.453066'

========================== row from database ==========================
                                              'id'  1328337
                                            'path'  /data/Music/Bulk/00poprockelectronic/Nina Hagen/1980 - Unbehagen/Nina Hagen - 07 Wau Wau.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  129
                                           'genre'  electronic-we-new wave or post punk
                                        'filesize'  2077173
                                           'mtime'  1620571590
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 1980 07 electronic we new wave or post punk
                                      'tag_artist'  Nina Hagen
                                     'tag_release'  Unbehagen
                                       'tag_title'  Wau Wau
                                             'bpm'  90.98
                                    'search_title'  'wau':1
                                   'search_artist'  'hagen':2 'nina':1
                                  'search_release'  'unbehagen':1
                                     'search_rest'  '00poprockelectronic':1 '1980':2 'electronic':3 'new':5 'or':7 'post':8 'punk':9 'wave':6 'we':4
                                    'search_combo'  '00poprockelectronic':5 '1980':6 'electronic':7 'hagen':3B 'new':9 'nina':2B 'or':11 'post':12 'punk':13 'unbehagen':4C 'wau':1A 'wave':10 'we':8
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-2', 'q-bass-3', 'q-grit-3']
                                      'lastfmtags'  ['german', 'new wave', 'post punk', 'punk', 'female vocalists']
                                        'tag_date'  1980
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620571590.2694728  (2021-05-09 16:46:30)
                             'size'  2077173