======================== unified (from filesystem) ========================
                                         'bitrate'  '270.995'
                                        'duration'  '82'
                                          'artist'  'Attilio Mineo'
                                     'text_people'  ''
                                         'release'  'Man in Space with Sounds'
                                           'title'  'Mile-A-Minute Monorail [Instrumental]'
                                           '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-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['soundtrack', 'obscuro', 'space age pop', 'electronic', 'experimental']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  '12'
                                            'date'  '1959'
                                        'comments'  ''
                                           'genre'  'electronic-experimental'
                                             'bpm'  '108.2'
                                             'key'  '1A'
                                        '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))                     '108.2'
'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)         'Mile-A-Minute Monorail [Instrumental]'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Attilio Mineo'
'TPE2' (Band/orchestra/accompaniment)               'Attilio Mineo'
'TPOS' (Part of a set)                              '2/2'
'TRCK' (Track number/Position in set)               '4/12'
'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'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.50 dB'
'TXXX:replaygain_track_peak'                        '0.349340'

========================== row from database ==========================
                                              'id'  1119754
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Man in Space with Sounds/2-04 Mile-A-Minute Monorail [Instrumental].mp3
                                         'working'  None
                                         'bitrate'  271
                                    'duration_sec'  82
                                           'genre'  electronic-experimental
                                        'filesize'  3295084
                                           'mtime'  1622659778
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 2 04 electronic experimental
                                      'tag_artist'  Attilio Mineo
                                     'tag_release'  Man in Space with Sounds
                                       'tag_title'  Mile-A-Minute Monorail [Instrumental]
                                             'bpm'  108.2
                                    'search_title'  'a':2 'instrumental':6,7 'mile':1 'mileaminute':4 'minute':3 'monorail':5
                                   'search_artist'  'attilio':1 'mineo':2
                                  'search_release'  'in':2 'man':1 'sounds':5 'space':3 'with':4
                                     'search_rest'  '2':1 'electronic':2 'experimental':3
                                    'search_combo'  '2':15 'a':2A 'attilio':8B 'electronic':16 'experimental':17 'in':11C 'instrumental':6A,7A 'man':10C 'mile':1A 'mileaminute':4A 'mineo':9B 'minute':3A 'monorail':5A 'sounds':14C 'space':12C 'with':13C
                                    'tag_tracknum'  4
                                      'num_images'  1
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', '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-4', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['soundtrack', 'obscuro', 'space age pop', 'electronic', 'experimental']
                                        'tag_date'  1959
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1622659778.08671  (2021-06-02 20:49:38)
                             'size'  3295084