======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '163'
                                          'artist'  'Betty Johnson'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'The Little Blue Man'
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                                      'lastfmtags'  "['hot rockin girl', 'entschleunigen', '50s', 'rockabilly', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1955'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '144.955'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '144.955'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1955'
'TIT2' (Title/songname/content description)         'The Little Blue Man'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Betty Johnson'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['hot rockin girl', 'entschleunigen', '50s', 'rockabilly', 'rock']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+3.00 dB'
'TXXX:replaygain_track_peak'                        '0.573149'

========================== row from database ==========================
                                              'id'  1313482
                                            'path'  /data/Music/Bulk/00poprockelectronic/Clean/Little Blue Man.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  163
                                           'genre'  prerock-unsorted
                                        'filesize'  2626288
                                           'mtime'  1620388046
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Clean prerock unsorted
                                      'tag_artist'  Betty Johnson
                                     'tag_release'  None
                                       'tag_title'  The Little Blue Man
                                             'bpm'  144.955
                                    'search_title'  'blue':3 'little':2 'man':4 'the':1
                                   'search_artist'  'betty':1 'johnson':2
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'clean':2 'prerock':3 'unsorted':4
                                    'search_combo'  '00poprockelectronic':7 'betty':5B 'blue':3A 'clean':8 'johnson':6B 'little':2A 'man':4A 'prerock':9 'the':1A 'unsorted':10
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['hot rockin girl', 'entschleunigen', '50s', 'rockabilly', 'rock']
                                        'tag_date'  1955
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620388045.7577834  (2021-05-07 13:47:25)
                             'size'  2626288