======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '269'
                                          'artist'  'Boom'
                                     'text_people'  ''
                                         'release'  'Tellus #03'
                                           'title'  'Spy'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', "
 "'q-grit-2', 'q-play-2', 'Q-OLDST-3', 'q-chart-1', 'q-drums-4', 'q-other-1', "
 "'q-piano-1', 'q-vocals-2', 'Q-HHRNBTT-1', 'q-mixbeat-1', 'Q-LOCALNESS-1']")
                                      'lastfmtags'  "['dance', 'trance', 'rap', 'eurodance', 'volgograd']"
                                     'discogstags'  "['house', 'speed garage', 'electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '15'
                                      'tracktotal'  ''
                                            'date'  '1984'
                                        'comments'  ''
                                           'genre'  'electronic-experimental-oddness'
                                             'bpm'  '115.9'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Tellus #03'
'TBPM' (BPM (beats per minute))                     '115.9'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'electronic-experimental-oddness'
'TDRC' (Recording time)                             '1984'
'TIT2' (Title/songname/content description)         'Spy'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Boom'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '15'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '3'
'TXXX:discogstags'                                  ['house', 'speed garage', 'electronic']
'TXXX:lastfmtags'                                   ['dance', 'trance', 'rap', 'eurodance', 'volgograd']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.80 dB'
'TXXX:replaygain_track_peak'                        '0.848381'

========================== row from database ==========================
                                              'id'  409117
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Tellus Audio Cassette Magazine/1983 - Tellus #3/15 - Boom - Spy.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  269
                                           'genre'  electronic-experimental-oddness
                                        'filesize'  6487314
                                           'mtime'  1621695788
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Audio Cassette Magazine 1983 #3 15 electronic experimental oddness
                                      'tag_artist'  Boom
                                     'tag_release'  Tellus #03
                                       'tag_title'  Spy
                                             'bpm'  115.9
                                    'search_title'  'spy':1
                                   'search_artist'  'boom':1
                                  'search_release'  '03':2,3 'tellus':1
                                     'search_rest'  '1983':4 '3':5,6 'audio':1 'cassette':2 'electronic':7 'experimental':8 'magazine':3 'oddness':9
                                    'search_combo'  '03':4C,5C '1983':9 '3':10,11 'audio':6 'boom':2B 'cassette':7 'electronic':12 'experimental':13 'magazine':8 'oddness':14 'spy':1A 'tellus':3C
                                    'tag_tracknum'  15
                                      'num_images'  1
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-3', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-1', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['dance', 'trance', 'rap', 'eurodance', 'volgograd']
                                        'tag_date'  1984
                                     'discogstags'  ['house', 'speed garage', 'electronic']

============================== file details ==============================
                                           'mtime'  1621695787.9619288  (2021-05-22 17:03:07)
                             'size'  6487314