======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '55'
                                          'artist'  'Radio Spot'
                                     'text_people'  ''
                                         'release'  "Instant Insanity - Weird Novelties & Instros From The '50s & Beyond"
                                           'title'  'Nurses For Sale'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-LOCALNESS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-1', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '11'
                                      'tracktotal'  '48'
                                            'date'  '1970'
                                        'comments'  ''
                                           'genre'  'nonmusic-commercials-trailers'
                                             'bpm'  '84.140'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            '11'
'COMM:iTunes_CDDB_1:eng'                            'B510F230+325520+48+150+2388+13263+15438+27813+31713+41013+43239+53589+55839+65891+70016+80743+84665+94190+98783+108003+108828+118764+120714+132986+137110+144745+146995+157674+159769+168841+173407+182107+186522+193575+200773+210866+213196+223996+225798+236217+240177+248802+253055+262430+266780+279432+283782+295097+298982+313501+315786'
'COMM:iTunes_CDDB_TrackNumber:eng'                  '11'
'TALB' (Album/Movie/Show title)                     "Instant Insanity - Weird Novelties & Instros From The '50s & Beyond"
'TBPM' (BPM (beats per minute))                     '84.140'
'TCON' (Content type, a.k.a. Genre)                 'nonmusic-commercials-trailers'
'TDRC' (Recording time)                             '1970'
'TENC' (Encoded by)                                 'iTunes 9.0.2'
'TIT2' (Title/songname/content description)         'Nurses For Sale'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Radio Spot'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '11/48'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'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'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.34 dB'
'TXXX:replaygain_track_peak'                        '0.590237'

========================== row from database ==========================
                                              'id'  1522958
                                            'path'  /data/Music/Bulk/0nonmusic/00commercials-tv-radio-movietrailer/Instant Insanity - Weird Novelties & Instros From The _50s & Beyond/11. Radio Spot - Nurses For Sale.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  55
                                           'genre'  nonmusic-commercials-trailers
                                        'filesize'  1297506
                                           'mtime'  1620527727
                                   'redo_metaread'  0
                                        'rest_str'   0nonmusic 00commercials tv radio movietrailer _50s 11. nonmusic commercials trailers
                                      'tag_artist'  Radio Spot
                                     'tag_release'  Instant Insanity - Weird Novelties & Instros From The '50s & Beyond
                                       'tag_title'  Nurses For Sale
                                             'bpm'  84.14
                                    'search_title'  'for':2 'nurses':1 'sale':3
                                   'search_artist'  'radio':1 'spot':2
                                  'search_release'  '50s':8,9 'beyond':10 'from':6 'insanity':2 'instant':1 'instros':5 'novelties':4 'the':7 'weird':3
                                     'search_rest'  '00commercials':2 '0nonmusic':1 '11':7,8 '50s':6 'commercials':10 'movietrailer':5 'nonmusic':9 'radio':4 'trailers':11 'tv':3
                                    'search_combo'  '00commercials':17 '0nonmusic':16 '11':22,23 '50s':13C,14C,21 'beyond':15C 'commercials':25 'for':2A 'from':11C 'insanity':7C 'instant':6C 'instros':10C 'movietrailer':20 'nonmusic':24 'novelties':9C 'nurses':1A 'radio':4B,19 'sale':3A 'spot':5B 'the':12C 'trailers':26 'tv':18 'weird':8C
                                    'tag_tracknum'  11
                                      'num_images'  1
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-2', 'q-chart-1', 'q-other-1', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1970
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620527727.0942123  (2021-05-09 04:35:27)
                             'size'  1297506