======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '139'
                                          'artist'  'Wild Rooster'
                                     'text_people'  ''
                                         'release'  'Riot'
                                           'title'  'Rockabilly Life'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-OLDST-2', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['neo rockabilly', 'rockabilly']"
                                     'discogstags'  "['rockabilly', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '04'
                                      'tracktotal'  ''
                                            'date'  '2008'
                                        'comments'  ''
                                           'genre'  'rock-rockabilly or psychobilly'
                                             'bpm'  '109.055'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'PRIV:AverageLevel:©\x18\x00\x00'                   PRIV(owner='AverageLevel', data=b'\xa9\x18\x00\x00')
'PRIV:PeakValue:ÿ\x7f\x00\x00'                      PRIV(owner='PeakValue', data=b'\xff\x7f\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')
'TALB' (Album/Movie/Show title)                     'Riot'
'TBPM' (BPM (beats per minute))                     '109.055'
'TCON' (Content type, a.k.a. Genre)                 'rock-rockabilly or psychobilly'
'TDOR' (Original release time)                      '2008'
'TDRC' (Recording time)                             '2008'
'TIT2' (Title/songname/content description)         'Rockabilly Life'
'TKEY' (Initial key)                                '11B'
'TPE1' (Lead performer(s)/Soloist(s))               'Wild Rooster'
'TRCK' (Track number/Position in set)               '04'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rockabilly', 'rock']
'TXXX:lastfmtags'                                   ['neo rockabilly', 'rockabilly']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.25 dB'
'TXXX:replaygain_track_peak'                        '0.503442'

========================== row from database ==========================
                                              'id'  1287708
                                            'path'  /data/Music/Bulk/00poprockelectronic/musica/wild rooster/riot/04 - Rockabilly Life.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  139
                                           'genre'  rock-rockabilly or psychobilly
                                        'filesize'  3339597
                                           'mtime'  1620526953
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic musica wild rooster riot 04 rock rockabilly or psychobilly
                                      'tag_artist'  Wild Rooster
                                     'tag_release'  Riot
                                       'tag_title'  Rockabilly Life
                                             'bpm'  109.055
                                    'search_title'  'life':2 'rockabilly':1
                                   'search_artist'  'rooster':2 'wild':1
                                  'search_release'  'riot':1
                                     'search_rest'  '00poprockelectronic':1 'musica':2 'or':8 'psychobilly':9 'riot':5 'rock':6 'rockabilly':7 'rooster':4 'wild':3
                                    'search_combo'  '00poprockelectronic':6 'life':2A 'musica':7 'or':13 'psychobilly':14 'riot':5C,10 'rock':11 'rockabilly':1A,12 'rooster':4B,9 'wild':3B,8
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['neo rockabilly', 'rockabilly']
                                        'tag_date'  2008
                                     'discogstags'  ['rockabilly', 'rock']

============================== file details ==============================
                                           'mtime'  1620526953.397115  (2021-05-09 04:22:33)
                             'size'  3339597