======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '516'
                                          'artist'  '1991'
                                     'text_people'  ''
                                         'release'  'No More Dreams'
                                           'title'  'No More Dreams I'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-UNU-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['idm', 'drone', 'electronic', 'experimental', 'ambient']"
                                     'discogstags'  "['thrash', 'hardcore', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '7'
                                            'date'  '2016'
                                        'comments'  ''
                                           'genre'  'electronic'
                                             'bpm'  '89.691'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'No More Dreams'
'TBPM' (BPM (beats per minute))                     '89.691'
'TCON' (Content type, a.k.a. Genre)                 'electronic'
'TDRC' (Recording time)                             '2016'
'TIT2' (Title/songname/content description)         'No More Dreams I'
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               '1991'
'TPE2' (Band/orchestra/accompaniment)               '1991'
'TRCK' (Track number/Position in set)               '1/7'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['thrash', 'hardcore', 'rock']
'TXXX:lastfmtags'                                   ['idm', 'drone', 'electronic', 'experimental', 'ambient']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.46 dB'
'TXXX:replaygain_track_peak'                        '0.485570'

========================== row from database ==========================
                                              'id'  1382091
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/01 - No More Dreams I.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  516
                                           'genre'  electronic
                                        'filesize'  21710068
                                           'mtime'  1636914473
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] 01 electronic
                                      'tag_artist'  1991
                                     'tag_release'  No More Dreams
                                       'tag_title'  No More Dreams I
                                             'bpm'  89.691
                                    'search_title'  'dreams':3 'i':4 'more':2 'no':1
                                   'search_artist'  '1991':1
                                  'search_release'  'dreams':3 'more':2 'no':1
                                     'search_rest'  '00poprockelectronic':1 'electronic':7 'files':5,6 'loose':3,4 'unsorted':2
                                    'search_combo'  '00poprockelectronic':9 '1991':5B 'dreams':3A,8C 'electronic':15 'files':13,14 'i':4A 'loose':11,12 'more':2A,7C 'no':1A,6C 'unsorted':10
                                    'tag_tracknum'  1
                                      'num_images'  1
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-3', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['idm', 'drone', 'electronic', 'experimental', 'ambient']
                                        'tag_date'  2016
                                     'discogstags'  ['thrash', 'hardcore', 'rock']

============================== file details ==============================
                                           'mtime'  1636914473.3804157  (2021-11-14 19:27:53)
                             'size'  21710068