======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '132'
                                          'artist'  'Jim Reeves'
                                     'text_people'  'Boudleaux Bryant'
                                         'release'  'Classic Country: The Fifties Legends Disc 1'
                                           'title'  'Blue Boy'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-3', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-3', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['classic country', 'oldies', 'country', 'male vocalists', 'christmas']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  ''
                                            'date'  '1958'
                                        'comments'  ''
                                           'genre'  'prerock-country'
                                             'bpm'  '98.025'
                                             'key'  '8B'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         '58-305 POS 45'
'COMM:ID3v1 Comment:XXX'                            '58-305 POS 45'
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'PRIV:AverageLevel:-\x0f\x00\x00'                   PRIV(owner='AverageLevel', data=b'-\x0f\x00\x00')
'PRIV:PeakValue:µU\x00\x00'                         PRIV(owner='PeakValue', data=b'\xb5U\x00\x00')
'PRIV:WM/MediaClassPrimaryID:¼}`Ñ#ãâK\x86¡H¤*(D\x1e'  PRIV(owner='WM/MediaClassPrimaryID', data=b'\xbc}`\xd1#\xe3\xe2K\x86\xa1H\xa4*(D\x1e')
'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:£*\x03J-\x81\x8cO\x92UÚG/ê?\x83'  PRIV(owner='WM/WMCollectionID', data=b'\xa3*\x03J-\x81\x8cO\x92U\xdaG/\xea?\x83')
'PRIV:WM/WMContentID:ño $-|$M³\x0eí\x84äÔ\x0cK'     PRIV(owner='WM/WMContentID', data=b'\xf1o $-|$M\xb3\x0e\xed\x84\xe4\xd4\x0cK')
'TALB' (Album/Movie/Show title)                     'Classic Country: The Fifties Legends Disc 1'
'TBPM' (BPM (beats per minute))                     '98.025'
'TCOM' (Composer)                                   'Boudleaux Bryant'
'TCON' (Content type, a.k.a. Genre)                 'prerock-country'
'TDRC' (Recording time)                             '1958'
'TIT2' (Title/songname/content description)         'Blue Boy'
'TKEY' (Initial key)                                '8B'
'TLEN' (Length)                                     '132760'
'TPE1' (Lead performer(s)/Soloist(s))               'Jim Reeves'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'Time Life'
'TRCK' (Track number/Position in set)               '5'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['classic country', 'oldies', 'country', 'male vocalists', 'christmas']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.28 dB'
'TXXX:replaygain_track_peak'                        '0.559813'

========================== row from database ==========================
                                              'id'  1454571
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1958/58-305 - Reeves - Blue Boy.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  132
                                           'genre'  prerock-country
                                        'filesize'  5309960
                                           'mtime'  1621627910
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1958 58 305 prerock country
                                      'tag_artist'  Jim Reeves
                                     'tag_release'  Classic Country: The Fifties Legends Disc 1
                                       'tag_title'  Blue Boy
                                             'bpm'  98.025
                                    'search_title'  'blue':1 'boy':2
                                   'search_artist'  'jim':1 'reeves':2
                                  'search_release'  '1':8 'classic':1 'country':2,3 'disc':7 'fifties':5 'legends':6 'the':4
                                     'search_rest'  '00oldiepop':5 '1958':6 '305':8 '58':7 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':9
                                    'search_combo'  '00oldiepop':17 '1':12C '1958':18 '305':20 '58':19 'blue':1A 'boy':2A 'classic':5C 'country':6C,7C,16 'disc':11C 'exotica':14 'fifties':9C 'jazz':13 'jim':3B 'legends':10C 'oldies':15 'prerock':21 'reeves':4B 'the':8C
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  8B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['classic country', 'oldies', 'country', 'male vocalists', 'christmas']
                                        'tag_date'  1958
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621627910.3563151  (2021-05-21 22:11:50)
                             'size'  5309960