======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '406'
                                          'artist'  'Donna Summer'
                                     'text_people'  ''
                                         'release'  'The Donna Summer Anthology'
                                           'title'  'Hot Stuff'
                                           'quals'  ("['Q-HAP-4', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-3', 'q-bass-2', 'q-busy-3', 'q-grit-1', 'q-play-3', "
 "'q-chart-3', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['dance', '70s', 'female vocalists', 'pop', 'disco']"
                                     'discogstags'  "['electronic', 'funk / soul', 'synth-pop', 'disco']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '13'
                                      'tracktotal'  '16'
                                            'date'  '1993'
                                        'comments'  ''
                                           'genre'  'electronic-we-disco or italo'
                                             'bpm'  '121'
                                             'key'  '6A'
                                        'acoustid'  'a6dd36cc-bba4-41c5-9ed1-0e5b746654b2'
rest: ''

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

'POPM:\x01ÿþ3'                                      POPM(email='\x01ÿþ3', rating=0, count=0)
'TALB' (Album/Movie/Show title)                     'The Donna Summer Anthology'
'TBPM' (BPM (beats per minute))                     '121'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-disco or italo'
'TDOR' (Original release time)                      '1993'
'TDRC' (Recording time)                             '1993'
'TIT2' (Title/songname/content description)         'Hot Stuff'
'TKEY' (Initial key)                                '6A'
'TMED' (Media type)                                 'Cassette'
'TPE1' (Lead performer(s)/Soloist(s))               'Donna Summer'
'TPE2' (Band/orchestra/accompaniment)               'Donna Summer'
'TPOS' (Part of a set)                              '1/2'
'TPUB' (Publisher)                                  'Casablanca Records'
'TRCK' (Track number/Position in set)               '13/16'
'TSO2'                                              'Summer, Donna'
'TSOP' (Performer sort order)                       'Summer, Donna'
'TSRC' (ISRC (international standard recording code))  'USPR37900068'
'TXXX:Acoustid Id'                                  'a6dd36cc-bba4-41c5-9ed1-0e5b746654b2'
'TXXX:Artists'                                      'Donna Summer'
'TXXX:BARCODE'                                      '731451814440'
'TXXX:CATALOGNUMBER'                                '518 144-4'
'TXXX:FMPS_Rating'                                  '0.6'
'TXXX:MusicBrainz Album Artist Id'                  'b60527cc-54f3-4bbe-a01b-dcf34c95ae14'
'TXXX:MusicBrainz Album Id'                         '47ce9534-8482-4318-8332-40878adb27c6'
'TXXX:MusicBrainz Album Release Country'            'XE'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album/compilation'
'TXXX:MusicBrainz Artist Id'                        'b60527cc-54f3-4bbe-a01b-dcf34c95ae14'
'TXXX:MusicBrainz Release Group Id'                 'bb329808-2b53-372b-9537-896da34f6b9b'
'TXXX:MusicBrainz Release Track Id'                 '7f657dd3-d8b8-3819-a799-0a257929a5fa'
'TXXX:Q-HAP'                                        '4'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['electronic', 'funk / soul', 'synth-pop', 'disco']
'TXXX:lastfmtags'                                   ['dance', '70s', 'female vocalists', 'pop', 'disco']
'TXXX:originalyear'                                 '1993'
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.01 dB'
'TXXX:replaygain_track_peak'                        '0.885107'
'TXXX:ÿþerlpyaagnit_arkcg_ia'                       'n0+0. 9Bd'
'TXXX:ÿþerlpyaagnit_arkcp_ae'                       'k.0880508'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'8494b7ae-0629-45f7-ace0-ab5fc7c3af77')

========================== row from database ==========================
                                              'id'  1291359
                                            'path'  /data/Music/Bulk/00poprockelectronic-waves-disco/00disco-italo/Donna Summer/MBZ;#Donna Summer;#The Donna Summer Anthology (disc 1);#13;#Hot Stuff.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  406
                                           'genre'  electronic-we-disco or italo
                                        'filesize'  6518840
                                           'mtime'  1620535263
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic waves disco 00disco italo MBZ;#Donna Summer;#The (disc 1);#13;#Hot electronic we disco or italo
                                      'tag_artist'  Donna Summer
                                     'tag_release'  The Donna Summer Anthology
                                       'tag_title'  Hot Stuff
                                             'bpm'  121.0
                                    'search_title'  'hot':1 'stuff':2
                                   'search_artist'  'donna':1 'summer':2
                                  'search_release'  'anthology':4 'donna':2 'summer':3 'the':1
                                     'search_rest'  '00disco':4 '00poprockelectronic':1 '1':16,19 '13':17,20 'disc':14,15 'disco':3 'donna':7,9 'electronic':22 'hot':18,21 'italo':5 'mbz':6,8 'or':24 'summer':10,12 'the':11,13 'waves':2 'we':23
                                    'search_combo'  '00disco':12 '00poprockelectronic':9 '1':24,27 '13':25,28 'anthology':8C 'disc':22,23 'disco':11 'donna':3B,6C,15,17 'electronic':30 'hot':1A,26,29 'italo':13 'mbz':14,16 'or':32 'stuff':2A 'summer':4B,7C,18,20 'the':5C,19,21 'waves':10 'we':31
                                    'tag_tracknum'  13
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-3', 'q-other-2', 'Q-HAP-4', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  ['dance', '70s', 'female vocalists', 'pop', 'disco']
                                        'tag_date'  1993
                                     'discogstags'  ['electronic', 'funk / soul', 'synth-pop', 'disco']

============================== file details ==============================
                                           'mtime'  1620535263.205831  (2021-05-09 06:41:03)
                             'size'  6518840