======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '164'
                                          'artist'  'Backyard Babies'
                                     'text_people'  ''
                                         'release'  'Total 13 [Import Bonus Tracks]'
                                           'title'  'Look at You'
                                           'quals'  ("['Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-OLDST-3', "
 "'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', 'q-mixbeat-2']")
                                      'lastfmtags'  "['swedish', 'punk rock', 'rock n roll', 'punk', 'rock', 'hard rock']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '05'
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'rock-pop;rock-gr-punk'
                                             'bpm'  '119.2'
                                             'key'  '4B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Total 13 [Import Bonus Tracks]'
'TBPM' (BPM (beats per minute))                     '119.2'
'TCON' (Content type, a.k.a. Genre)                 ['rock-pop', 'rock-gr-punk']
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'Look at You'
'TKEY' (Initial key)                                '4B'
'TLEN' (Length)                                     '164571'
'TMED' (Media type)                                 'DIG'
'TPE1' (Lead performer(s)/Soloist(s))               'Backyard Babies'
'TPE2' (Band/orchestra/accompaniment)               'Backyard Babies'
'TRCK' (Track number/Position in set)               '05'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['swedish', 'punk rock', 'rock n roll', 'punk', 'rock', 'hard rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.84 dB'
'TXXX:replaygain_track_peak'                        '0.453296'

========================== row from database ==========================
                                              'id'  1471011
                                            'path'  /data/Music/Bulk/00poprockelectronic/swedish rock/Backyard Babies - Look At You.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  164
                                           'genre'  rock-pop;rock-gr-punk
                                        'filesize'  2645888
                                           'mtime'  1620392791
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic swedish rock At rock pop;rock gr punk
                                      'tag_artist'  Backyard Babies
                                     'tag_release'  Total 13 [Import Bonus Tracks]
                                       'tag_title'  Look at You
                                             'bpm'  119.2
                                    'search_title'  'at':2 'look':1 'you':3
                                   'search_artist'  'babies':2 'backyard':1
                                  'search_release'  'bonus':4 'import':2,3 'total':1 'tracks':5,6
                                     'search_rest'  '00poprockelectronic':1 'at':4 'gr':9 'pop':5,7 'punk':10 'rock':3,6,8 'swedish':2
                                    'search_combo'  '00poprockelectronic':12 'at':2A,15 'babies':5B 'backyard':4B 'bonus':9C 'gr':20 'import':7C,8C 'look':1A 'pop':16,18 'punk':21 'rock':14,17,19 'swedish':13 'total':6C 'tracks':10C,11C 'you':3A
                                    'tag_tracknum'  5
                                      'num_images'  1
                                             'key'  4B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['swedish', 'punk rock', 'rock n roll', 'punk', 'rock', 'hard rock']
                                        'tag_date'  2000
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620392790.7228324  (2021-05-07 15:06:30)
                             'size'  2645888