======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '367'
                                          'artist'  'Aerosmith'
                                     'text_people'  ''
                                         'release'  'Get a Grip'
                                           'title'  "Livin' on the Edge"
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['hard rock', '80s', 'classic rock', '70s', 'rock']"
                                     'discogstags'  "['hard rock', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  ''
                                            'date'  '1993'
                                        'comments'  ''
                                           'genre'  'rock-cppex-classic'
                                             'bpm'  '85.058'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'APIC:Cover Image'                                  type PictureType.COVER_FRONT (Cover (front)) b'Cover Image'
                                     
'POPM:Windows Media Player 9 Series'                POPM(email='Windows Media Player 9 Series', rating=128, count=0)
'TALB' (Album/Movie/Show title)                     'Get a Grip'
'TBPM' (BPM (beats per minute))                     '85.058'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-classic'
'TDOR' (Original release time)                      '1993'
'TDRC' (Recording time)                             '1993'
'TIT2' (Title/songname/content description)         "Livin' on the Edge"
'TKEY' (Initial key)                                '10B'
'TPE1' (Lead performer(s)/Soloist(s))               'Aerosmith'
'TRCK' (Track number/Position in set)               '5'
'TXXX:FMPS_Rating'                                  '0.4'
'TXXX:MP3GAIN_MINMAX'                               '122,186'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['hard rock', 'rock']
'TXXX:lastfmtags'                                   ['hard rock', '80s', 'classic rock', '70s', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.68 dB'
'TXXX:replaygain_track_peak'                        '0.457781'

========================== row from database ==========================
                                              'id'  1506469
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/Aerosmith/Aerosmith__MBZ;#Aerosmith;#Get a Grip;#05;#Livin_ on the Edge.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  367
                                           'genre'  rock-cppex-classic
                                        'filesize'  5904377
                                           'mtime'  1678456081
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy Aerosmith__MBZ;#Aerosmith;#Get Grip;#05;#Livin_ rock cppex classic
                                      'tag_artist'  Aerosmith
                                     'tag_release'  Get a Grip
                                       'tag_title'  Livin' on the Edge
                                             'bpm'  85.058
                                    'search_title'  'edge':5 'livin':1,2 'on':3 'the':4
                                   'search_artist'  'aerosmith':1
                                  'search_release'  'a':2 'get':1 'grip':3
                                     'search_rest'  '05':11,14 'aerosmith':2,4,6,8 'classic':18 'classicprogpsy':1 'cppex':17 'get':5,9 'grip':10,13 'livin':12,15 'mbz':3,7 'rock':16
                                    'search_combo'  '05':20,23 'a':8C 'aerosmith':6B,11,13,15,17 'classic':27 'classicprogpsy':10 'cppex':26 'edge':5A 'get':7C,14,18 'grip':9C,19,22 'livin':1A,2A,21,24 'mbz':12,16 'on':3A 'rock':25 'the':4A
                                    'tag_tracknum'  5
                                      'num_images'  1
                                             'key'  10B
                                           'quals'  ['Q-HAP-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', 'q-chart-4', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', 'q-mixbeat-2']
                                      'lastfmtags'  ['hard rock', '80s', 'classic rock', '70s', 'rock']
                                        'tag_date'  1993
                                     'discogstags'  ['hard rock', 'rock']

============================== file details ==============================
                                           'mtime'  1678456080.5528014  (2023-03-10 14:48:00)
                             'size'  5904377