======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '122'
                                          'artist'  'People Like Us'
                                     'text_people'  ''
                                         'release'  ("A Special Free Download From People Like Us & WFMU's Beware Of The Blog, "
 'Volume 1')
                                           'title'  'All The Screamers'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-UNU-3', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['electronic', 'plunderphonics', 'avant garde', 'mashup', 'experimental']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  '9'
                                            'date'  '2008'
                                        'comments'  ''
                                           'genre'  'electronic-experimental'
                                             'bpm'  '127.1'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:iTunNORM:eng'                                 (' 00000A99 00000B25 00007405 0000E9B4 0000EA49 0000BD97 000080E0 000080F0 '
 '0001CC34 0001CC34')
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 000008AA 00000000005246C6 00000000 00000000 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'TALB' (Album/Movie/Show title)                     ("A Special Free Download From People Like Us & WFMU's Beware Of The Blog, "
 'Volume 1')
'TBPM' (BPM (beats per minute))                     '127.1'
'TCON' (Content type, a.k.a. Genre)                 'electronic-experimental'
'TDRC' (Recording time)                             '2008'
'TENC' (Encoded by)                                 'iTunes v6.0.5'
'TIT2' (Title/songname/content description)         'All The Screamers'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'People Like Us'
'TRCK' (Track number/Position in set)               '5/9'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '3'
'TXXX:lastfmtags'                                   ['electronic', 'plunderphonics', 'avant garde', 'mashup', 'experimental']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'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'                        '+2.61 dB'
'TXXX:replaygain_track_peak'                        '0.421117'

========================== row from database ==========================
                                              'id'  1372748
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/People Like Us - PLU-Downloadable Do or DIY/05-All-The-Screamers.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  122
                                           'genre'  electronic-experimental
                                        'filesize'  3090526
                                           'mtime'  1636757009
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm PLU Downloadable or DIY 05 electronic experimental
                                      'tag_artist'  People Like Us
                                     'tag_release'  A Special Free Download From People Like Us & WFMU's Beware Of The Blog, Volume 1
                                       'tag_title'  All The Screamers
                                             'bpm'  127.1
                                    'search_title'  'all':1 'screamers':3 'the':2
                                   'search_artist'  'like':2 'people':1 'us':3
                                  'search_release'  '1':18 'a':1 'beware':12 'blog':15,16 'download':4 'free':3 'from':5 'like':7 'of':13 'people':6 's':10 'special':2 'the':14 'us':8 'volume':17 'wfmu':9 'wfmus':11
                                     'search_rest'  'diy':4 'downloadable':2 'electronic':5 'experimental':6 'or':3 'plu':1
                                    'search_combo'  '1':24C 'a':7C 'all':1A 'beware':18C 'blog':21C,22C 'diy':28 'download':10C 'downloadable':26 'electronic':29 'experimental':30 'free':9C 'from':11C 'like':5B,13C 'of':19C 'or':27 'people':4B,12C 'plu':25 's':16C 'screamers':3A 'special':8C 'the':2A,20C 'us':6B,14C 'volume':23C 'wfmu':15C 'wfmus':17C
                                    'tag_tracknum'  5
                                      'num_images'  1
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-3', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['electronic', 'plunderphonics', 'avant garde', 'mashup', 'experimental']
                                        'tag_date'  2008
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636757008.5704012  (2021-11-12 23:43:28)
                             'size'  3090526