======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '142'
                                          'artist'  'Dave Dudley'
                                     'text_people'  ''
                                         'release'  "Greasy Rock'n'Roll  Vol. 09"
                                           'title'  "Where There's A Will"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['classic country', 'country', 'trucker country']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '06'
                                      'tracktotal'  ''
                                            'date'  '1960'
                                        'comments'  ''
                                           'genre'  'rock-pop-surf'
                                             'bpm'  '117.5'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:iTunNORM:eng'                                 (' 000002A5 000003E5 00001D19 00002453 0000C817 0000C817 000043AD 00004395 '
 '0001C56C 0001C36D')
'PRIV:AverageLevel:{\x18\x00\x00'                   PRIV(owner='AverageLevel', data=b'{\x18\x00\x00')
'PRIV:PeakValue:¡\x7f\x00\x00'                      PRIV(owner='PeakValue', data=b'\xa1\x7f\x00\x00')
'TALB' (Album/Movie/Show title)                     "Greasy Rock'n'Roll  Vol. 09"
'TBPM' (BPM (beats per minute))                     '117.5'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop-surf'
'TDRC' (Recording time)                             '1960'
'TIT2' (Title/songname/content description)         "Where There's A Will"
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Dave Dudley'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '06'
'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:lastfmtags'                                   ['classic country', 'country', 'trucker country']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.31 dB'
'TXXX:replaygain_track_peak'                        '0.528747'

========================== row from database ==========================
                                              'id'  1522451
                                            'path'  /data/Music/Bulk/00popandrock-punk-garage-surf-stoner/Kip Tyler - va - Greasy Rock_n_Roll  Vol. 09/A6 - Dave Dudley - Where There_s A Will.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  142
                                           'genre'  rock-pop-surf
                                        'filesize'  2355804
                                           'mtime'  1620736963
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock punk garage surf stoner Kip Tyler va Rock_n_Roll A6 There_s rock pop surf
                                      'tag_artist'  Dave Dudley
                                     'tag_release'  Greasy Rock'n'Roll  Vol. 09
                                       'tag_title'  Where There's A Will
                                             'bpm'  117.5
                                    'search_title'  'a':5 's':3 'there':2 'theres':4 'where':1 'will':6
                                   'search_artist'  'dave':1 'dudley':2
                                  'search_release'  'greasy':1 'n':3 'rock':2 'rocknroll':5 'roll':4 'vol':6,7
                                     'search_rest'  'a6':11 'garage':2 'kip':5 'n':9 'pop':15 'punk':1 'rock':8,14 'roll':10 's':13 'stoner':4 'surf':3 'there':12 'tyler':6 'va':7
                                    'search_combo'  'a':5A 'a6':26 'dave':7B 'dudley':8B 'garage':17 'greasy':9C 'kip':20 'n':11C,24 'pop':30 'punk':16 'rock':10C,23,29 'rocknroll':13C 'roll':12C,25 's':3A,28 'stoner':19 'surf':18 'there':2A,27 'theres':4A 'tyler':21 'va':22 'vol':14C,15C 'where':1A 'will':6A
                                    'tag_tracknum'  6
                                      'num_images'  1
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['classic country', 'country', 'trucker country']
                                        'tag_date'  1960
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620736962.881868  (2021-05-11 14:42:42)
                             'size'  2355804