======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '150'
                                          'artist'  'The Teen Queens'
                                     'text_people'  ''
                                         'release'  'Eddie My Love'
                                           'title'  'Rock Everybody'
                                           '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-1', "
 "'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-2']")
                                      'lastfmtags'  "['50s', 'pop', 'doo wop', 'oldies']"
                                     'discogstags'  "['funk / soul', 'pop', 'soul', 'ballad']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  '22'
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'set-pl-spelling'
                                             'bpm'  '143.925'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            '0'
'COMM:iTunNORM:eng'                                 (' 000028E2 000028E2 00010197 00010197 0000324E 0000324E 000084D2 000084D2 '
 '0001B81A 0001B81A')
'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 0000072C 0000000000652944 00000000 0036FF2F 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'COMM:iTunes_CDDB_IDs:eng'                          '22+7DBB32FEC0368DE2B645D79A52F70689+710416'
'TALB' (Album/Movie/Show title)                     'Eddie My Love'
'TBPM' (BPM (beats per minute))                     '143.925'
'TCON' (Content type, a.k.a. Genre)                 'set-pl-spelling'
'TDRC' (Recording time)                             '1995'
'TENC' (Encoded by)                                 'iTunes 8.0.2'
'TIT2' (Title/songname/content description)         'Rock Everybody'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Teen Queens'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '9/22'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['funk / soul', 'pop', 'soul', 'ballad']
'TXXX:lastfmtags'                                   ['50s', 'pop', 'doo wop', 'oldies']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.46 dB'
'TXXX:replaygain_track_peak'                        '0.336163'

========================== row from database ==========================
                                              'id'  767480
                                            'path'  /data/Music/Bulk/0playlists/0novelty themes/spelling/The Teen Queens - Rock Everybody.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  150
                                           'genre'  set-pl-spelling
                                        'filesize'  3611500
                                           'mtime'  1620356439
                                   'redo_metaread'  0
                                        'rest_str'   0playlists 0novelty themes spelling set pl spelling
                                      'tag_artist'  The Teen Queens
                                     'tag_release'  Eddie My Love
                                       'tag_title'  Rock Everybody
                                             'bpm'  143.925
                                    'search_title'  'everybody':2 'rock':1
                                   'search_artist'  'queens':3 'teen':2 'the':1
                                  'search_release'  'eddie':1 'love':3 'my':2
                                     'search_rest'  '0novelty':2 '0playlists':1 'pl':6 'set':5 'spelling':4 'themes':3
                                    'search_combo'  '0novelty':10 '0playlists':9 'eddie':6C 'everybody':2A 'love':8C 'my':7C 'pl':14 'queens':5B 'rock':1A 'set':13 'spelling':12 'teen':4B 'the':3B 'themes':11
                                    'tag_tracknum'  9
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-1', 'q-other-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['50s', 'pop', 'doo wop', 'oldies']
                                        'tag_date'  1995
                                     'discogstags'  ['funk / soul', 'pop', 'soul', 'ballad']

============================== file details ==============================
                                           'mtime'  1620356438.6193962  (2021-05-07 05:00:38)
                             'size'  3611500