======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '173'
                                          'artist'  'Klaus Wunderlich'
                                     'text_people'  ''
                                         'release'  'The Collection Vol 4'
                                           'title'  'Track 10'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-UNU-1', "
 "'Q-OLDST-2', 'q-syn-3', 'q-bass-1', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['lounge', 'hammond organ', 'hammond heaven', 'organ', 'easy listening']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  ''
                                            'date'  '1990'
                                        'comments'  ''
                                           'genre'  'mi-earlysynth-organ'
                                             'bpm'  '145.4'
                                             'key'  '3B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'The Collection Vol 4'
'TBPM' (BPM (beats per minute))                     '145.4'
'TCON' (Content type, a.k.a. Genre)                 'mi-earlysynth-organ'
'TDRC' (Recording time)                             '1990'
'TIT2' (Title/songname/content description)         'Track 10'
'TKEY' (Initial key)                                '3B'
'TLEN' (Length)                                     '173871'
'TMED' (Media type)                                 'DIG'
'TPE1' (Lead performer(s)/Soloist(s))               'Klaus Wunderlich'
'TRCK' (Track number/Position in set)               '10'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['lounge', 'hammond organ', 'hammond heaven', 'organ', 'easy listening']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.46 dB'
'TXXX:replaygain_track_peak'                        '0.660085'

========================== row from database ==========================
                                              'id'  1324960
                                            'path'  /data/Music/Bulk/00spent/0justbad/Klaus Wunderlich/klaus wunderlich-the collection vol. 4/01 Klaus Wunderlich - El Cumbachero.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  173
                                           'genre'  mi-earlysynth-organ
                                        'filesize'  2783104
                                           'mtime'  1620528059
                                   'redo_metaread'  0
                                        'rest_str'   00spent 0justbad klaus wunderlich the collection vol. 01 El Cumbachero mi earlysynth organ
                                      'tag_artist'  Klaus Wunderlich
                                     'tag_release'  The Collection Vol 4
                                       'tag_title'  Track 10
                                             'bpm'  145.4
                                    'search_title'  'track':1
                                   'search_artist'  'klaus':1 'wunderlich':2
                                  'search_release'  '4':4 'collection':2 'the':1 'vol':3
                                     'search_rest'  '00spent':1 '0justbad':2 'collection':6 'cumbachero':10 'earlysynth':12 'el':9 'klaus':3 'mi':11 'organ':13 'the':5 'vol':7,8 'wunderlich':4
                                    'search_combo'  '00spent':8 '0justbad':9 '4':7C 'collection':5C,13 'cumbachero':17 'earlysynth':19 'el':16 'klaus':2B,10 'mi':18 'organ':20 'the':4C,12 'track':1A 'vol':6C,14,15 'wunderlich':3B,11
                                    'tag_tracknum'  10
                                      'num_images'  0
                                             'key'  3B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-3', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['lounge', 'hammond organ', 'hammond heaven', 'organ', 'easy listening']
                                        'tag_date'  1990
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620528058.8514304  (2021-05-09 04:40:58)
                             'size'  2783104