======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '91'
                                          'artist'  'Aphex Twin'
                                     'text_people'  ''
                                         'release'  'Richard D. James Album'
                                           'title'  'Beetles'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-UNU-3', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-4', 'q-grit-3', 'q-play-3', "
 "'q-chart-3', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['draq', 'drjazzmrfunkmusic', 'electric textures']"
                                     'discogstags'  "['electronic', 'idm', 'drum n bass', 'experimental', 'acid']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '14'
                                      'tracktotal'  ''
                                            'date'  '1996'
                                        'comments'  ''
                                           'genre'  'electronic-experimental-glitch-breakcore;set-pl-sced'
                                             'bpm'  '91.888'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Richard D. James Album'
'TBPM' (BPM (beats per minute))                     '91.888'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-experimental-glitch-breakcore', 'set-pl-sced']
'TDRC' (Recording time)                             '1996'
'TIT2' (Title/songname/content description)         'Beetles'
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'Aphex Twin'
'TRCK' (Track number/Position in set)               '14'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '3'
'TXXX:discogstags'                                  ['electronic', 'idm', 'drum n bass', 'experimental', 'acid']
'TXXX:lastfmtags'                                   ['draq', 'drjazzmrfunkmusic', 'electric textures']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '4'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.99 dB'
'TXXX:replaygain_track_peak'                        '0.476897'

========================== row from database ==========================
                                              'id'  143251
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Aphex Twin/1995 - Richard D. James Album/14 - Beetles.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  91
                                           'genre'  electronic-experimental-glitch-breakcore;set-pl-sced
                                        'filesize'  3648369
                                           'mtime'  1621637963
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 1995 14 electronic experimental glitch breakcore;set pl sced
                                      'tag_artist'  Aphex Twin
                                     'tag_release'  Richard D. James Album
                                       'tag_title'  Beetles
                                             'bpm'  91.888
                                    'search_title'  'beetles':1
                                   'search_artist'  'aphex':1 'twin':2
                                  'search_release'  'album':5 'd':2,3 'james':4 'richard':1
                                     'search_rest'  '1995':1 'breakcore':5,7 'electronic':2 'experimental':3 'glitch':4 'pl':9 'sced':10 'set':6,8
                                    'search_combo'  '1995':9 'album':8C 'aphex':2B 'beetles':1A 'breakcore':13,15 'd':5C,6C 'electronic':10 'experimental':11 'glitch':12 'james':7C 'pl':17 'richard':4C 'sced':18 'set':14,16 'twin':3B
                                    'tag_tracknum'  14
                                      'num_images'  0
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-3', 'Q-JZFKS-1', 'q-busy-4', 'q-drums-1', 'q-syn-3', 'q-chart-3', 'q-other-4', 'Q-HAP-2', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  ['draq', 'drjazzmrfunkmusic', 'electric textures']
                                        'tag_date'  1996
                                     'discogstags'  ['electronic', 'idm', 'drum n bass', 'experimental', 'acid']

============================== file details ==============================
                                           'mtime'  1621637962.743232  (2021-05-22 00:59:22)
                             'size'  3648369