======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '247'
                                          'artist'  'Lena Horne'
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                                         'release'  'Electro Swing Spirit CD2'
                                           'title'  'I Want A Little Doggie (Remix)'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
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                                      'lastfmtags'  "['vocal jazz', 'jazz vocal', 'jazz', 'female vocalists', 'oldies']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  '0'
                                            'date'  '2012'
                                        'comments'  ''
                                           'genre'  'electronic-trip hop or downtempo or acid jazz'
                                             'bpm'  '86.7'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

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'TBPM' (BPM (beats per minute))                     '86.7'
'TCMP'                                              '0'
'TCON' (Content type, a.k.a. Genre)                 'electronic-trip hop or downtempo or acid jazz'
'TDRC' (Recording time)                             '2012'
'TIT2' (Title/songname/content description)         'I Want A Little Doggie (Remix)'
'TKEY' (Initial key)                                '10B'
'TPE1' (Lead performer(s)/Soloist(s))               'Lena Horne'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '0/0'
'TRCK' (Track number/Position in set)               '9/0'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['vocal jazz', 'jazz vocal', 'jazz', 'female vocalists', 'oldies']
'TXXX:q-bass'                                       '4'
'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'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.11 dB'
'TXXX:replaygain_track_peak'                        '0.396400'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'')
'USLT::\x00\x00\x00'                                ''

========================== row from database ==========================
                                              'id'  1325632
                                            'path'  /data/Music/Bulk/00poprockelectronic/00trip/new fashion/209. lena horne - i want a little doggie (remix).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  247
                                           'genre'  electronic-trip hop or downtempo or acid jazz
                                        'filesize'  9911890
                                           'mtime'  1636911162
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00trip new fashion 209. lena horne want little doggie (remix) electronic trip hop downtempo acid jazz
                                      'tag_artist'  Lena Horne
                                     'tag_release'  Electro Swing Spirit CD2
                                       'tag_title'  I Want A Little Doggie (Remix)
                                             'bpm'  86.7
                                    'search_title'  'a':3 'doggie':5 'i':1 'little':4 'remix':6,7 'want':2
                                   'search_artist'  'horne':2 'lena':1
                                  'search_release'  'cd2':4 'electro':1 'spirit':3 'swing':2
                                     'search_rest'  '00poprockelectronic':1 '00trip':2 '209':5,6 'acid':18 'doggie':11 'downtempo':17 'electronic':14 'fashion':4 'hop':16 'horne':8 'jazz':19 'lena':7 'little':10 'new':3 'remix':12,13 'trip':15 'want':9
                                    'search_combo'  '00poprockelectronic':14 '00trip':15 '209':18,19 'a':3A 'acid':31 'cd2':13C 'doggie':5A,24 'downtempo':30 'electro':10C 'electronic':27 'fashion':17 'hop':29 'horne':9B,21 'i':1A 'jazz':32 'lena':8B,20 'little':4A,23 'new':16 'remix':6A,7A,25,26 'spirit':12C 'swing':11C 'trip':28 'want':2A,22
                                    'tag_tracknum'  9
                                      'num_images'  0
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['vocal jazz', 'jazz vocal', 'jazz', 'female vocalists', 'oldies']
                                        'tag_date'  2012
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636911162.1786008  (2021-11-14 18:32:42)
                             'size'  9911890