======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '123'
                                          'artist'  'Monkees'
                                     'text_people'  ''
                                         'release'  'Head'
                                           'title'  'Head Radio Spot [*]'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-2', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['60s', 'classic rock', 'pop', 'rock', 'oldies']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '20'
                                      'tracktotal'  ''
                                            'date'  '1970'
                                        'comments'  ''
                                           'genre'  'nonmusic-commercials'
                                             'bpm'  '116.186'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'PRIV:WM/MediaClassPrimaryID:¼}`Ñ#ãâK\x86¡H¤*(D\x1e'  PRIV(owner='WM/MediaClassPrimaryID', data=b'\xbc}`\xd1#\xe3\xe2K\x86\xa1H\xa4*(D\x1e')
'PRIV:WM/MediaClassSecondaryID:\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'  PRIV(owner='WM/MediaClassSecondaryID', data=b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
'TALB' (Album/Movie/Show title)                     'Head'
'TBPM' (BPM (beats per minute))                     '116.186'
'TCON' (Content type, a.k.a. Genre)                 'nonmusic-commercials'
'TDRC' (Recording time)                             '1970'
'TIT2' (Title/songname/content description)         'Head Radio Spot [*]'
'TKEY' (Initial key)                                '9A'
'TLEN' (Length)                                     '123506'
'TPE1' (Lead performer(s)/Soloist(s))               'Monkees'
'TRCK' (Track number/Position in set)               '20'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['60s', 'classic rock', 'pop', 'rock', 'oldies']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.72 dB'
'TXXX:replaygain_track_peak'                        '0.515669'

========================== row from database ==========================
                                              'id'  951114
                                            'path'  /data/Music/Bulk/0nonmusic/00commercials-tv-radio-movietrailer/The Monkees-Head-Head Radio Spot [-] (1968).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  123
                                           'genre'  nonmusic-commercials
                                        'filesize'  1984303
                                           'mtime'  1620524716
                                   'redo_metaread'  0
                                        'rest_str'   0nonmusic 00commercials tv radio movietrailer The (1968) nonmusic commercials
                                      'tag_artist'  Monkees
                                     'tag_release'  Head
                                       'tag_title'  Head Radio Spot [*]
                                             'bpm'  116.186
                                    'search_title'  'head':1 'radio':2 'spot':3
                                   'search_artist'  'monkees':1
                                  'search_release'  'head':1
                                     'search_rest'  '00commercials':2 '0nonmusic':1 '1968':7,8 'commercials':10 'movietrailer':5 'nonmusic':9 'radio':4 'the':6 'tv':3
                                    'search_combo'  '00commercials':7 '0nonmusic':6 '1968':12,13 'commercials':15 'head':1A,5C 'monkees':4B 'movietrailer':10 'nonmusic':14 'radio':2A,9 'spot':3A 'the':11 'tv':8
                                    'tag_tracknum'  20
                                      'num_images'  1
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-1', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['60s', 'classic rock', 'pop', 'rock', 'oldies']
                                        'tag_date'  1970
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620524716.0991805  (2021-05-09 03:45:16)
                             'size'  1984303