======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '306'
                                          'artist'  'Chaos Frame'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'I Kissed A Girl'
                                           'quals'  ("['Q-HAP-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-3', 'q-play-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['power metal', 'progressive metal']"
                                     'discogstags'  "['progressive metal', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'eid-unsorted;set-cover or covered'
                                             'bpm'  '104.068'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '104.068'
'TCON' (Content type, a.k.a. Genre)                 ['eid-unsorted', 'set-cover or covered']
'TIT2' (Title/songname/content description)         'I Kissed A Girl'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Chaos Frame'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['progressive metal', 'rock']
'TXXX:lastfmtags'                                   ['power metal', 'progressive metal']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.96 dB'
'TXXX:replaygain_track_peak'                        '0.335960'

========================== row from database ==========================
                                              'id'  165243
                                            'path'  /data/Music/Bulk/00dwimp/Unsorted/I Kissed A Girl - Power Metal Version.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  306
                                           'genre'  eid-unsorted;set-cover or covered
                                        'filesize'  7368006
                                           'mtime'  1620521104
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp Unsorted Power Metal Version eid unsorted;set cover or covered
                                      'tag_artist'  Chaos Frame
                                     'tag_release'  None
                                       'tag_title'  I Kissed A Girl
                                             'bpm'  104.068
                                    'search_title'  'a':3 'girl':4 'i':1 'kissed':2
                                   'search_artist'  'chaos':1 'frame':2
                                  'search_release'  
                                     'search_rest'  '00dwimp':1 'cover':11 'covered':13 'eid':6 'metal':4 'or':12 'power':3 'set':8,10 'unsorted':2,7,9 'version':5
                                    'search_combo'  '00dwimp':7 'a':3A 'chaos':5B 'cover':17 'covered':19 'eid':12 'frame':6B 'girl':4A 'i':1A 'kissed':2A 'metal':10 'or':18 'power':9 'set':14,16 'unsorted':8,13,15 'version':11
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-1', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  ['power metal', 'progressive metal']
                                        'tag_date'  
                                     'discogstags'  ['progressive metal', 'rock']

============================== file details ==============================
                                           'mtime'  1620521104.4976783  (2021-05-09 02:45:04)
                             'size'  7368006