======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '230'
                                          'artist'  'Bart & Baker'
                                     'text_people'  ''
                                         'release'  'Betty Boop presents Electro Swing'
                                           'title'  'The Swing Phenomenon'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['electroswing', 'electro swing', 'electro', 'swing']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '2012'
                                        'comments'  'VA - Betty Boop presents Electro Swing (2012) MP3 @ 320Kbps'
                                           'genre'  'electronic-trip hop or downtempo or acid jazz'
                                             'bpm'  '100.0'
                                             'key'  '2B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Betty Boop presents Electro Swing'
'TBPM' (BPM (beats per minute))                     '100.0'
'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)         'The Swing Phenomenon'
'TIT3' (Subtitle/Description refinement)            'VA - Betty Boop presents Electro Swing (2012) MP3 @ 320Kbps'
'TKEY' (Initial key)                                '2B'
'TPE1' (Lead performer(s)/Soloist(s))               'Bart & Baker'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '4'
'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:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['electroswing', 'electro swing', 'electro', 'swing']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '+14.46 dB'
'TXXX:replaygain_track_peak'                        '0.082077'

========================== row from database ==========================
                                              'id'  1343811
                                            'path'  /data/Music/Bulk/00poprockelectronic/00trip/new fashion/BBES/04. Bart & Baker feat. Nicolle Rochelle - The Swing Phenomenon.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  230
                                           'genre'  electronic-trip hop or downtempo or acid jazz
                                        'filesize'  10549503
                                           'mtime'  1636911162
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00trip new fashion BBES 04. feat. Nicolle Rochelle electronic trip hop or downtempo or acid jazz
                                      'tag_artist'  Bart & Baker
                                     'tag_release'  Betty Boop presents Electro Swing
                                       'tag_title'  The Swing Phenomenon
                                             'bpm'  100.0
                                    'search_title'  'phenomenon':3 'swing':2 'the':1
                                   'search_artist'  'baker':2 'bart':1
                                  'search_release'  'betty':1 'boop':2 'electro':4 'presents':3 'swing':5
                                     'search_rest'  '00poprockelectronic':1 '00trip':2 '04':6,7 'acid':17 'bbes':5 'downtempo':16 'electronic':12 'fashion':4 'feat':8,9 'hop':14 'jazz':18 'new':3 'nicolle':10 'or':15 'rochelle':11 'trip':13
                                    'search_combo'  '00poprockelectronic':11 '00trip':12 '04':16,17 'acid':27 'baker':5B 'bart':4B 'bbes':15 'betty':6C 'boop':7C 'downtempo':26 'electro':9C 'electronic':22 'fashion':14 'feat':18,19 'hop':24 'jazz':28 'new':13 'nicolle':20 'or':25 'phenomenon':3A 'presents':8C 'rochelle':21 'swing':2A,10C 'the':1A 'trip':23
                                    'tag_tracknum'  4
                                      'num_images'  1
                                             'key'  2B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['electroswing', 'electro swing', 'electro', 'swing']
                                        'tag_date'  2012
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1636911162.4098198  (2021-11-14 18:32:42)
                             'size'  10549503