<pre>
======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '244'
                                          'artist'  'Fred Astairre'
                                     'text_people'  ''
                                         'release'  'Betty Boop presents Electro Swing'
                                           'title'  "Puttin' on the Ritz (Club des Belugas Remix)"
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-syn-3', 'q-bass-3', 'q-busy-3', "
 "'q-grit-2', 'q-play-2', 'Q-OLDST-3', 'q-chart-2', 'q-drums-4', 'q-other-2', "
 "'q-piano-1', 'q-vocals-3', 'Q-HHRNBTT-1', 'q-mixbeat-3', 'Q-LOCALNESS-1']")
                                      'lastfmtags'  "['jazz', 'swing', 'oldies', 'musicals', '30s']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '13'
                                      'tracktotal'  ''
                                            'date'  '2012'
                                        'comments'  'VA - Betty Boop presents Electro Swing (2012) MP3 @ 320Kbps'
                                           'genre'  'electronic-trip hop or downtempo or acid jazz'
                                             'bpm'  '92.9'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================<mutagen.mp3.MPEGInfo object at 0x7f9537d81310>

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''<br/>                                     <img style="width:150px" src="image?fid=1501176"/>
'TALB' (Album/Movie/Show title)                     'Betty Boop presents Electro Swing'
'TBPM' (BPM (beats per minute))                     '92.9'
'TCON' (Content type, a.k.a. Genre)                 'electronic-trip hop or downtempo or acid jazz'
'TCOP' (Copyright message)                          'Edel'
'TDRC' (Recording time)                             '2012'
'TIT2' (Title/songname/content description)         "Puttin' on the Ritz (Club des Belugas Remix)"
'TIT3' (Subtitle/Description refinement)            'VA - Betty Boop presents Electro Swing (2012) MP3 @ 320Kbps'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Fred Astairre'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '13'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['jazz', 'swing', 'oldies', 'musicals', '30s']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+15.11 dB'
'TXXX:replaygain_track_peak'                        '0.081796'

========================== row from database ==========================
                                              'id'  1501176
                                            'path'  /data/Music/Bulk/00poprockelectronic/00trip/new fashion/BBES/13. Fred Astairre - Puttin_ on the Ritz (Club des Belugas Remix).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  244
                                           'genre'  electronic-trip hop or downtempo or acid jazz
                                        'filesize'  11111709
                                           'mtime'  1636911168
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00trip new fashion BBES 13. Puttin_ electronic trip hop or downtempo or acid jazz
                                      'tag_artist'  Fred Astairre
                                     'tag_release'  Betty Boop presents Electro Swing
                                       'tag_title'  Puttin' on the Ritz (Club des Belugas Remix)
                                             'bpm'  92.9
                                    'search_title'  'belugas':9 'club':6,7 'des':8 'on':3 'puttin':1,2 'remix':10,11 'ritz':5 'the':4
                                   'search_artist'  'astairre':2 'fred':1
                                  'search_release'  'betty':1 'boop':2 'electro':4 'presents':3 'swing':5
                                     'search_rest'  '00poprockelectronic':1 '00trip':2 '13':6,7 'acid':14 'bbes':5 'downtempo':13 'electronic':9 'fashion':4 'hop':11 'jazz':15 'new':3 'or':12 'puttin':8 'trip':10
                                    'search_combo'  '00poprockelectronic':19 '00trip':20 '13':24,25 'acid':32 'astairre':13B 'bbes':23 'belugas':9A 'betty':14C 'boop':15C 'club':6A,7A 'des':8A 'downtempo':31 'electro':17C 'electronic':27 'fashion':22 'fred':12B 'hop':29 'jazz':33 'new':21 'on':3A 'or':30 'presents':16C 'puttin':1A,2A,26 'remix':10A,11A 'ritz':5A 'swing':18C 'the':4A 'trip':28
                                    'tag_tracknum'  13
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['jazz', 'swing', 'oldies', 'musicals', '30s']
                                        'tag_date'  2012
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636911167.6639626  (2021-11-14 18:32:47)
                             'size'  11111709