======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '135'
                                          'artist'  'Jimmie F. Rodgers'
                                     'text_people'  'Al Hoffman/Dick Manning/Mark Markwell'
                                         'release'  'The Best of Jimmie Rodgers [Rhino]'
                                           'title'  "Oh-Oh, I'm Falling In Love Again"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', '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'  "['country', 'folk', 'blues', 'bluegrass', 'classic country']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '1958'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '95.259'
                                             'key'  '2A'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         '58-076 POS 7'
'COMM:ID3v1 Comment:XXX'                            '58-076 POS 7'
'MCDI' (Music CD identifier)                        MCDI(data=b'1\x002\x00+\x009\x006\x00+\x002\x008\x00A\x00F\x00+\x005\x002\x007\x004\x00+\x007\x00A\x004\x004\x00+\x00A\x007\x000\x003\x00+\x00D\x005\x004\x001\x00+\x00F\x009\x00A\x004\x00+\x001\x002\x005\x002\x008\x00+\x001\x004\x00F\x000\x008\x00+\x001\x007\x007\x005\x008\x00+\x001\x009\x008\x006\x00B\x00+\x001\x00C\x002\x008\x007\x00+\x001\x00E\x00F\x004\x006\x00+\x002\x001\x006\x00E\x007\x00+\x002\x003\x00F\x005\x00A\x00+\x002\x007\x002\x00E\x00A\x00+\x002\x009\x008\x008\x006\x00+\x002\x00C\x007\x00B\x001\x00+\x003\x001\x000\x006\x008\x00\x00\x00')
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'PRIV:WM/WMCollectionID:×ù \x86iê\x99K\x92Nü\x96òνÃ'  PRIV(owner='WM/WMCollectionID', data=b'\xd7\xf9 \x86i\xea\x99K\x92N\xfc\x96\xf2\xce\xbd\xc3')
'PRIV:WM/WMContentID:¤\x11zâ`dÄL«±÷⫶æÂ'           PRIV(owner='WM/WMContentID', data=b'\xa4\x11z\xe2`d\xc4L\xab\xb1\xf7\xe2\xab\xb6\xe6\xc2')
'TALB' (Album/Movie/Show title)                     'The Best of Jimmie Rodgers [Rhino]'
'TBPM' (BPM (beats per minute))                     '95.259'
'TCOM' (Composer)                                   'Al Hoffman/Dick Manning/Mark Markwell'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1958'
'TIT2' (Title/songname/content description)         "Oh-Oh, I'm Falling In Love Again"
'TKEY' (Initial key)                                '2A'
'TLEN' (Length)                                     '135893'
'TPE1' (Lead performer(s)/Soloist(s))               'Jimmie Rodgers'
'TPE2' (Band/orchestra/accompaniment)               'Jimmie F. Rodgers'
'TPUB' (Publisher)                                  'Rhino'
'TRCK' (Track number/Position in set)               '3'
'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'                                   ['country', 'folk', 'blues', 'bluegrass', 'classic country']
'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'                        '+1.17 dB'
'TXXX:replaygain_track_peak'                        '0.595883'

========================== row from database ==========================
                                              'id'  1508416
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1958/58-076 - Jimmie Rodgers - Oh-Oh, I_m Falling In Love Again.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  135
                                           'genre'  prerock-unsorted
                                        'filesize'  5437410
                                           'mtime'  1621698356
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1958 58 076 I_m prerock unsorted
                                      'tag_artist'  Jimmie F. Rodgers
                                     'tag_release'  The Best of Jimmie Rodgers [Rhino]
                                       'tag_title'  Oh-Oh, I'm Falling In Love Again
                                             'bpm'  95.259
                                    'search_title'  'again':10 'falling':7 'i':4 'im':6 'in':8 'love':9 'm':5 'oh':1,2 'ohoh':3
                                   'search_artist'  'f':2,3 'jimmie':1 'rodgers':4
                                  'search_release'  'best':2 'jimmie':4 'of':3 'rhino':6,7 'rodgers':5 'the':1
                                     'search_rest'  '00oldiepop':5 '1958':6 '58':7 'country':4 'exotica':2 'i':8 'jazz':1 'm':9 'oldies':3 'prerock':10 'unsorted':11
                                    'search_combo'  '00oldiepop':26 '1958':27 '58':28 'again':10A 'best':16C 'country':25 'exotica':23 'f':12B,13B 'falling':7A 'i':4A,29 'im':6A 'in':8A 'jazz':22 'jimmie':11B,18C 'love':9A 'm':5A,30 'of':17C 'oh':1A,2A 'ohoh':3A 'oldies':24 'prerock':31 'rhino':20C,21C 'rodgers':14B,19C 'the':15C 'unsorted':32
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  2A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', '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'  ['country', 'folk', 'blues', 'bluegrass', 'classic country']
                                        'tag_date'  1958
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621698356.457656  (2021-05-22 17:45:56)
                             'size'  5437410