======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '133'
                                          'artist'  'Moe Koffman'
                                     'text_people'  'Moe Koffman'
                                         'release'  'Vintage Instrumentals, Vol. 2'
                                           'title'  'Swinging Shepherd Blues'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-2', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['jazz', 'canadian', 'funk', 'toronto', 'flute']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '1958'
                                        'comments'  ''
                                           'genre'  'prerock-instrumental'
                                             'bpm'  '111.394'
                                             'key'  '8B'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         '58-196 POS 23'
'COMM:ID3v1 Comment:XXX'                            '58-196 POS 23'
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'PRIV:WM/MediaClassSecondaryID:\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'  PRIV(owner='WM/MediaClassSecondaryID', data=b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
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'PRIV:WM/WMCollectionID:c\x04º6a®vH«b\x96:nù=í'     PRIV(owner='WM/WMCollectionID', data=b'c\x04\xba6a\xaevH\xabb\x96:n\xf9=\xed')
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'TALB' (Album/Movie/Show title)                     'Vintage Instrumentals, Vol. 2'
'TBPM' (BPM (beats per minute))                     '111.394'
'TCOM' (Composer)                                   'Moe Koffman'
'TCON' (Content type, a.k.a. Genre)                 'prerock-instrumental'
'TDRC' (Recording time)                             '1958'
'TIT2' (Title/songname/content description)         'Swinging Shepherd Blues'
'TKEY' (Initial key)                                '8B'
'TLEN' (Length)                                     '133800'
'TPE1' (Lead performer(s)/Soloist(s))               'Moe Koffman'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'Stardust'
'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'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['jazz', 'canadian', 'funk', 'toronto', 'flute']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.97 dB'
'TXXX:replaygain_track_peak'                        '0.448916'

========================== row from database ==========================
                                              'id'  1429355
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1958/58-196 - Moe Koffman Quartette - Swinging Shepherd Blues.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  133
                                           'genre'  prerock-instrumental
                                        'filesize'  5352619
                                           'mtime'  1621705418
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1958 58 196 Quartette prerock instrumental
                                      'tag_artist'  Moe Koffman
                                     'tag_release'  Vintage Instrumentals, Vol. 2
                                       'tag_title'  Swinging Shepherd Blues
                                             'bpm'  111.394
                                    'search_title'  'blues':3 'shepherd':2 'swinging':1
                                   'search_artist'  'koffman':2 'moe':1
                                  'search_release'  '2':6 'instrumentals':2,3 'vintage':1 'vol':4,5
                                     'search_rest'  '00oldiepop':5 '1958':6 '196':8 '58':7 'country':4 'exotica':2 'instrumental':11 'jazz':1 'oldies':3 'prerock':10 'quartette':9
                                    'search_combo'  '00oldiepop':16 '1958':17 '196':19 '2':11C '58':18 'blues':3A 'country':15 'exotica':13 'instrumental':22 'instrumentals':7C,8C 'jazz':12 'koffman':5B 'moe':4B 'oldies':14 'prerock':21 'quartette':20 'shepherd':2A 'swinging':1A 'vintage':6C 'vol':9C,10C
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  8B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['jazz', 'canadian', 'funk', 'toronto', 'flute']
                                        'tag_date'  1958
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621705417.933218  (2021-05-22 19:43:37)
                             'size'  5352619