<pre>
======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '192'
                                          'artist'  'Carson Robison'
                                     'text_people'  ''
                                         'release'  'Music for Maniacs'
                                           'title'  'The Bum Song'
                                           'quals'  ("['Q-HAP-2', '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-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['country', 'all', 'political', 'rockabilly', 'spotify']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2010'
                                        'comments'  ''
                                           'genre'  'electronic-experimental-oddness'
                                             'bpm'  '132.3'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================<mutagen.mp3.MPEGInfo object at 0x7f9537d81430>

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''<br/>                                     <img style="width:150px" src="image?fid=649872"/>
'COMM:iTunes_CDDB_1:eng'                            '0210F013+325372+19+150+12785+26030+40190+52410+66810+79015+108045+138530+152405+166295+179500+191720+204130+217815+255340+285020+298345+310860'
'COMM:iTunes_CDDB_TrackNumber:eng'                  '5'
'PRIV:ZuneCollectionID:òÑ3öÑ/\x06A²º\x9f¹L;c\x8f'   PRIV(owner='ZuneCollectionID', data=b'\xf2\xd13\xf6\xd1/\x06A\xb2\xba\x9f\xb9L;c\x8f')
'TALB' (Album/Movie/Show title)                     'Music for Maniacs'
'TBPM' (BPM (beats per minute))                     '132.3'
'TCON' (Content type, a.k.a. Genre)                 'electronic-experimental-oddness'
'TDRC' (Recording time)                             '2010'
'TENC' (Encoded by)                                 'iTunes v7.0.2'
'TIT2' (Title/songname/content description)         'The Bum Song'
'TKEY' (Initial key)                                '11A'
'TPE1' (Lead performer(s)/Soloist(s))               'Carson Robison'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '3'
'TXXX:lastfmtags'                                   ['country', 'all', 'political', 'rockabilly', 'spotify']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.15 dB'
'TXXX:replaygain_track_peak'                        '0.501617'

========================== row from database ==========================
                                              'id'  649872
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/music for maniacs/Carson_Robison_-_The_Bum_Song.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  192
                                           'genre'  electronic-experimental-oddness
                                        'filesize'  3928064
                                           'mtime'  1636916289
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm music maniacs Carson_Robison_ _The_Bum_Song electronic experimental oddness
                                      'tag_artist'  Carson Robison
                                     'tag_release'  Music for Maniacs
                                       'tag_title'  The Bum Song
                                             'bpm'  132.3
                                    'search_title'  'bum':2 'song':3 'the':1
                                   'search_artist'  'carson':1 'robison':2
                                  'search_release'  'for':2 'maniacs':3 'music':1
                                     'search_rest'  'bum':6 'carson':3 'electronic':8 'experimental':9 'maniacs':2 'music':1 'oddness':10 'robison':4 'song':7 'the':5
                                    'search_combo'  'bum':2A,14 'carson':4B,11 'electronic':16 'experimental':17 'for':7C 'maniacs':8C,10 'music':6C,9 'oddness':18 'robison':5B,12 'song':3A,15 'the':1A,13
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', '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-3', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['country', 'all', 'political', 'rockabilly', 'spotify']
                                        'tag_date'  2010
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636916289.2323546  (2021-11-14 19:58:09)
                             'size'  3928064