======================== unified (from filesystem) ========================
                                         'bitrate'  '220.233'
                                        'duration'  '186'
                                          'artist'  'J.B.O.'
                                     'text_people'  ''
                                         'release'  'Head Bang Boing'
                                           'title'  'Head Bang Boing'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-OLDST-3', 'Q-UNU-2', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-1', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['german', 'fun metal', 'metal', 'comedy', 'rock']"
                                     'discogstags'  ("['rock', 'non-music', 'pop', 'hard rock', 'pop rock', 'spoken word', "
 "'speech', 'heavy metal', 'hardcore', 'comedy', 'parody']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '2007'
                                        'comments'  ''
                                           'genre'  'entertaining-unsorted'
                                             'bpm'  '100.306'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Head Bang Boing'
'TBPM' (BPM (beats per minute))                     '100.306'
'TCON' (Content type, a.k.a. Genre)                 'entertaining-unsorted'
'TDRC' (Recording time)                             '2007'
'TIT2' (Title/songname/content description)         'Head Bang Boing'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'J.B.O.'
'TRCK' (Track number/Position in set)               '2'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['rock',
 'non-music',
 'pop',
 'hard rock',
 'pop rock',
 'spoken word',
 'speech',
 'heavy metal',
 'hardcore',
 'comedy',
 'parody']
'TXXX:lastfmtags'                                   ['german', 'fun metal', 'metal', 'comedy', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '1'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.39 dB'
'TXXX:replaygain_track_peak'                        '0.392873'

========================== row from database ==========================
                                              'id'  1305773
                                            'path'  /data/Music/Bulk/00spent/0justbad/JBO/J.B.O.-Head_Bang_Boing-DE-2007-NBD__J.B.O. - Head Bang Boing - 02 - Head Bang Boing.mp3
                                         'working'  None
                                         'bitrate'  220
                                    'duration_sec'  186
                                           'genre'  entertaining-unsorted
                                        'filesize'  5141954
                                           'mtime'  1637330814
                                   'redo_metaread'  0
                                        'rest_str'   00spent 0justbad JBO Head_Bang_Boing DE 2007 NBD__J.B.O. 02 entertaining unsorted
                                      'tag_artist'  J.B.O.
                                     'tag_release'  Head Bang Boing
                                       'tag_title'  Head Bang Boing
                                             'bpm'  100.306
                                    'search_title'  'bang':2 'boing':3 'head':1
                                   'search_artist'  'b':2 'j':1 'jbo':4 'o':3
                                  'search_release'  'bang':2 'boing':3 'head':1
                                     'search_rest'  '00spent':1 '0justbad':2 '2007':8 'b':11 'bang':5 'boing':6 'de':7 'entertaining':15 'head':4 'j':10 'jbo':3,14 'nbd':9,13 'o':12 'unsorted':16
                                    'search_combo'  '00spent':11 '0justbad':12 '2007':18 'b':5B,21 'bang':2A,9C,15 'boing':3A,10C,16 'de':17 'entertaining':25 'head':1A,8C,14 'j':4B,20 'jbo':7B,13,24 'nbd':19,23 'o':6B,22 'unsorted':26
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-1', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['german', 'fun metal', 'metal', 'comedy', 'rock']
                                        'tag_date'  2007
                                     'discogstags'  ['rock', 'non-music', 'pop', 'hard rock', 'pop rock', 'spoken word', 'speech', 'heavy metal', 'hardcore', 'comedy', 'parody']

============================== file details ==============================
                                           'mtime'  1637330814.3239667  (2021-11-19 15:06:54)
                             'size'  5141954