======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '247'
                                          'artist'  'Power-Pill'
                                     'text_people'  ''
                                         'release'  'Pac-Man'
                                           'title'  'Pac-Man (Ghost Mix)'
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', "
 "'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', 'q-mixbeat-3']")
                                      'lastfmtags'  "['electronica', 'pacman', 'idm', 'electronic', 'techno']"
                                     'discogstags'  "['breakbeat', 'hardcore', 'electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  '5'
                                            'date'  '1992'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '134.914'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            ' 000003D1 00000466 00001E62'
'COMM:iTunNORM:eng'                                 (' 000003D1 00000466 00001E62 000022FD 0000D4CA 000065AD 00008000 00008000 '
 '0000B6C4 00030F95')
'TALB' (Album/Movie/Show title)                     'Pac-Man'
'TBPM' (BPM (beats per minute))                     '134.914'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TDRC' (Recording time)                             '1992'
'TIT2' (Title/songname/content description)         'Pac-Man (Ghost Mix)'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Power-Pill'
'TPE2' (Band/orchestra/accompaniment)               'Power-Pill'
'TRCK' (Track number/Position in set)               '2/5'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['breakbeat', 'hardcore', 'electronic']
'TXXX:lastfmtags'                                   ['electronica', 'pacman', 'idm', 'electronic', 'techno']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.25 dB'
'TXXX:replaygain_track_peak'                        '0.720974'

========================== row from database ==========================
                                              'id'  1354811
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/03-aphex_twin-pacman_ghost_mix-pul3.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  247
                                           'genre'  electronic-unsorted
                                        'filesize'  5961418
                                           'mtime'  1620572556
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] 03 aphex_twin pacman_ghost_mix pul3 electronic unsorted
                                      'tag_artist'  Power-Pill
                                     'tag_release'  Pac-Man
                                       'tag_title'  Pac-Man (Ghost Mix)
                                             'bpm'  134.914
                                    'search_title'  'ghost':4,5 'man':2 'mix':6,7 'pac':1 'pacman':3
                                   'search_artist'  'pill':2 'power':1 'powerpill':3
                                  'search_release'  'man':2 'pac':1 'pacman':3
                                     'search_rest'  '00poprockelectronic':1 'aphex':7 'electronic':13 'files':5,6 'ghost':10 'loose':3,4 'mix':11 'pacman':9 'pul3':12 'twin':8 'unsorted':2
                                    'search_combo'  '00poprockelectronic':14 'aphex':20 'electronic':26 'files':18,19 'ghost':4A,5A,23 'loose':16,17 'man':2A,12C 'mix':6A,7A,24 'pac':1A,11C 'pacman':3A,13C,22 'pill':9B 'power':8B 'powerpill':10B 'pul3':25 'twin':21 'unsorted':15
                                    'tag_tracknum'  2
                                      'num_images'  1
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-2', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['electronica', 'pacman', 'idm', 'electronic', 'techno']
                                        'tag_date'  1992
                                     'discogstags'  ['breakbeat', 'hardcore', 'electronic']

============================== file details ==============================
                                           'mtime'  1620572556.3706224  (2021-05-09 17:02:36)
                             'size'  5961418