======================== unified (from filesystem) ========================
                                         'bitrate'  '164.325'
                                        'duration'  '186'
                                          'artist'  'Tennessee Ernie Ford'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "Stonewall Jackson's Way"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-3', "
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 "'q-chart-2', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
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                                      'lastfmtags'  "['country', 'americana', '50s', 'oldies', 'classic country']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '13'
                                      'tracktotal'  '24'
                                            'date'  '1991'
                                        'comments'  ''
                                           'genre'  'loc-namerica-country'
                                             'bpm'  '99.518'
                                             'key'  '9B'
                                        'acoustid'  '6662c564-d370-470c-ac06-ab1d1b033618'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TBPM' (BPM (beats per minute))                     '99.518'
'TCON' (Content type, a.k.a. Genre)                 'loc-namerica-country'
'TDOR' (Original release time)                      '1991'
'TDRC' (Recording time)                             '1991'
'TIT2' (Title/songname/content description)         "Stonewall Jackson's Way"
'TKEY' (Initial key)                                '9B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Tennessee Ernie Ford'
'TPE2' (Band/orchestra/accompaniment)               'Tennessee Ernie Ford'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Capitol Records'
'TRCK' (Track number/Position in set)               '13/24'
'TSO2'                                              'Ford, Tennessee Ernie'
'TSOP' (Performer sort order)                       'Ford, Tennessee Ernie'
'TSSE' (Software/Hardware and settings used for encoding)  'Lavf56.40.101'
'TXXX:ASIN'                                         'B0002T8CKY'
'TXXX:Acoustid Id'                                  '6662c564-d370-470c-ac06-ab1d1b033618'
'TXXX:Artists'                                      'Tennessee Ernie Ford'
'TXXX:BARCODE'                                      '077779570522'
'TXXX:CATALOGNUMBER'                                'CDP 7 95705 2'
'TXXX:DeviceConformanceTemplate'                    'L1'
'TXXX:IsVBR'                                        '1'
'TXXX:Length'                                       '186557'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['country', 'americana', '50s', 'oldies', 'classic country']
'TXXX:originalyear'                                 '1991'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'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'                        '+2.33 dB'
'TXXX:replaygain_track_peak'                        '0.513829'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'3afe69ce-fbb5-4d13-8a3c-af18b2ebf330')

========================== row from database ==========================
                                              'id'  1517514
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Old Country Music/Tennessee Ernie Ford - Stonewall Jackson_s Way.wma.mp3
                                         'working'  None
                                         'bitrate'  164
                                    'duration_sec'  186
                                           'genre'  loc-namerica-country
                                        'filesize'  3928548
                                           'mtime'  1621628283
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Old Country Music Jackson_s Way.wma loc namerica country
                                      'tag_artist'  Tennessee Ernie Ford
                                     'tag_release'  None
                                       'tag_title'  Stonewall Jackson's Way
                                             'bpm'  99.518
                                    'search_title'  'jackson':2 'jacksons':4 's':3 'stonewall':1 'way':5
                                   'search_artist'  'ernie':2 'ford':3 'tennessee':1
                                  'search_release'  
                                     'search_rest'  'country':4 'exotica':2 'jackson':7 'jazz':1 'loc':12 'music':6 'namerica':13 'old':5 'oldies':3 's':8 'way':9 'waywma':11 'wma':10
                                    'search_combo'  'country':12 'ernie':7B 'exotica':10 'ford':8B 'jackson':2A,15 'jacksons':4A 'jazz':9 'loc':20 'music':14 'namerica':21 'old':13 'oldies':11 's':3A,16 'stonewall':1A 'tennessee':6B 'way':5A,17 'waywma':19 'wma':18
                                    'tag_tracknum'  13
                                      'num_images'  1
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['country', 'americana', '50s', 'oldies', 'classic country']
                                        'tag_date'  1991
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621628283.1525986  (2021-05-21 22:18:03)
                             'size'  3928548