======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '357'
                                          'artist'  'Jojo Mayer & Nerve'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'squobbler'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-1', 'Q-SYN-3', 'Q-BUSY-3', 'Q-GRIT-2', 'Q-PLAY-2', 'q-bass-4', "
 "'Q-CHART-2', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-1', "
 "'Q-MIXBEAT-2']")
                                      'lastfmtags'  "['drum and bass', 'electronic jazz', 'jazz', 'electronic', 'nu jazz']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '130.3'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '130.3'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TENC' (Encoded by)                                 'Lavf52.32.0'
'TIT2' (Title/songname/content description)         'squobbler'
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               'Jojo Mayer & Nerve'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-SYN'                                        '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['drum and bass', 'electronic jazz', 'jazz', 'electronic', 'nu jazz']
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-8.66 dB'
'TXXX:replaygain_track_peak'                        '1.049218'

========================== row from database ==========================
                                              'id'  1482751
                                            'path'  /data/Music/Bulk/00poprockelectronic/Jojo Mayer & Nerve - EP2/03 squobbler.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  357
                                           'genre'  electronic-unsorted
                                        'filesize'  14324211
                                           'mtime'  1621697710
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic EP2 03 electronic unsorted
                                      'tag_artist'  Jojo Mayer & Nerve
                                     'tag_release'  None
                                       'tag_title'  squobbler
                                             'bpm'  130.3
                                    'search_title'  'squobbler':1
                                   'search_artist'  'jojo':1 'mayer':2 'nerve':3
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'electronic':3 'ep2':2 'unsorted':4
                                    'search_combo'  '00poprockelectronic':5 'electronic':7 'ep2':6 'jojo':2B 'mayer':3B 'nerve':4B 'squobbler':1A 'unsorted':8
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'Q-MIXBEAT-2', 'Q-OLDST-3', 'Q-GRIT-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-CHART-2', 'q-drums-4', 'q-piano-1', 'Q-SYN-3', 'q-other-1', 'Q-BUSY-3', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-4']
                                      'lastfmtags'  ['drum and bass', 'electronic jazz', 'jazz', 'electronic', 'nu jazz']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621697709.6584253  (2021-05-22 17:35:09)
                             'size'  14324211