======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '302'
                                          'artist'  'Punk Floyd'
                                     'text_people'  ''
                                         'release'  'Punk Floyd Have Landed'
                                           'title'  'We Are Punk'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'Q-GRIT-2', 'q-bass-3', 'q-drums-4', 'q-other-1', 'q-piano-1', "
 "'q-vocals-2', 'Q-SYN-4', 'Q-BUSY-3', 'Q-PLAY-2', 'Q-CHART-1', 'Q-MIXBEAT-4']")
                                      'lastfmtags'  "['acid techno', 'techno', 'acid']"
                                     'discogstags'  "['techno', 'electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  '12'
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-th-techno-acid'
                                             'bpm'  '145.8'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

'COMM:iTunNORM:eng'                                 (' 00000181 0000016C 0000155C 00001407 00010729 00010729 00007DD8 00007A13 '
 '0001E51A 0001E51A')
'COMM:iTunes_CDDB_IDs:eng'                          '12+3E903F271F54881856828841F559F737+241877'
'TALB' (Album/Movie/Show title)                     'Punk Floyd Have Landed'
'TBPM' (BPM (beats per minute))                     '145.8'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-techno-acid'
'TENC' (Encoded by)                                 'iTunes v4.7.0.42'
'TIT2' (Title/songname/content description)         'We Are Punk'
'TKEY' (Initial key)                                '11A'
'TPE1' (Lead performer(s)/Soloist(s))               'Punk Floyd'
'TRCK' (Track number/Position in set)               '12/12'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '1'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '4'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-SYN'                                        '4'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['techno', 'electronic']
'TXXX:lastfmtags'                                   ['acid techno', 'techno', 'acid']
'TXXX:q-bass'                                       '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.05 dB'
'TXXX:replaygain_track_peak'                        '0.820080'

========================== row from database ==========================
                                              'id'  1483868
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/Punk Floyd_-_Punk Floyd Have Landed/12 we are punk.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  302
                                           'genre'  electronic-th-techno-acid
                                        'filesize'  7255861
                                           'mtime'  1620586529
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy Floyd_ _Punk 12 we are punk electronic th techno acid
                                      'tag_artist'  Punk Floyd
                                     'tag_release'  Punk Floyd Have Landed
                                       'tag_title'  We Are Punk
                                             'bpm'  145.8
                                    'search_title'  'are':2 'punk':3 'we':1
                                   'search_artist'  'floyd':2 'punk':1
                                  'search_release'  'floyd':2 'have':3 'landed':4 'punk':1
                                     'search_rest'  'acid':10 'are':5 'classicprogpsy':1 'electronic':7 'floyd':2 'punk':3,6 'techno':9 'th':8 'we':4
                                    'search_combo'  'acid':19 'are':2A,14 'classicprogpsy':10 'electronic':16 'floyd':5B,7C,11 'have':8C 'landed':9C 'punk':3A,4B,6C,12,15 'techno':18 'th':17 'we':1A,13
                                    'tag_tracknum'  12
                                      'num_images'  0
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'Q-MIXBEAT-4', 'Q-OLDST-3', 'Q-GRIT-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-CHART-1', 'q-drums-4', 'Q-SYN-4', 'q-other-1', 'Q-BUSY-3', 'Q-HAP-2', 'Q-PLAY-2', 'q-bass-3']
                                      'lastfmtags'  ['acid techno', 'techno', 'acid']
                                        'tag_date'  
                                     'discogstags'  ['techno', 'electronic']

============================== file details ==============================
                                           'mtime'  1620586529.2823172  (2021-05-09 20:55:29)
                             'size'  7255861