======================== unified (from filesystem) ========================
                                         'bitrate'  '211.808'
                                        'duration'  '55'
                                          'artist'  'Attilio Mineo'
                                     'text_people'  ''
                                         'release'  'Man in Space with Sounds'
                                           'title'  "Space Age World's Fair"
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-3', 'Q-OLDST-3', "
 "'Q-HHRNBTT-1', 'q-syn-3', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['soundtrack', 'obscuro', 'space age pop', 'electronic', 'experimental']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  '12'
                                            'date'  '1959'
                                        'comments'  ''
                                           'genre'  'electronic-experimental'
                                             'bpm'  '127.5'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Man in Space with Sounds'
'TBPM' (BPM (beats per minute))                     '127.5'
'TCON' (Content type, a.k.a. Genre)                 'electronic-experimental'
'TDRC' (Recording time)                             '1959'
'TIT1' (Content group description)                  "World's Fair Records / Subliminal Sounds"
'TIT2' (Title/songname/content description)         "Space Age World's Fair"
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Attilio Mineo'
'TPE2' (Band/orchestra/accompaniment)               'Attilio Mineo'
'TPOS' (Part of a set)                              '1/2'
'TRCK' (Track number/Position in set)               '12/12'
'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:lastfmtags'                                   ['soundtrack', 'obscuro', 'space age pop', 'electronic', 'experimental']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.46 dB'
'TXXX:replaygain_track_peak'                        '0.589210'

========================== row from database ==========================
                                              'id'  1507623
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Man in Space with Sounds/1-12 Space Age World_s Fair.mp3
                                         'working'  None
                                         'bitrate'  212
                                    'duration_sec'  55
                                           'genre'  electronic-experimental
                                        'filesize'  1978316
                                           'mtime'  1622659778
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 1 12 World_s electronic experimental
                                      'tag_artist'  Attilio Mineo
                                     'tag_release'  Man in Space with Sounds
                                       'tag_title'  Space Age World's Fair
                                             'bpm'  127.5
                                    'search_title'  'age':2 'fair':6 's':4 'space':1 'world':3 'worlds':5
                                   'search_artist'  'attilio':1 'mineo':2
                                  'search_release'  'in':2 'man':1 'sounds':5 'space':3 'with':4
                                     'search_rest'  '1':1 'electronic':4 'experimental':5 's':3 'world':2
                                    'search_combo'  '1':14 'age':2A 'attilio':7B 'electronic':17 'experimental':18 'fair':6A 'in':10C 'man':9C 'mineo':8B 's':4A,16 'sounds':13C 'space':1A,11C 'with':12C 'world':3A,15 'worlds':5A
                                    'tag_tracknum'  12
                                      'num_images'  1
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-3', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-3', 'q-chart-1', 'q-other-3', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['soundtrack', 'obscuro', 'space age pop', 'electronic', 'experimental']
                                        'tag_date'  1959
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1622659777.9036338  (2021-06-02 20:49:37)
                             'size'  1978316