======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '167'
                                          'artist'  'David Bowie'
                                     'text_people'  ''
                                         'release'  'Aladdin Sane'
                                           'title'  "John, I'm Only Dancing"
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-1', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['classic rock', '80s', 'alternative', 'rock', 'glam rock']"
                                     'discogstags'  "['rock', 'glam']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '14'
                                      'tracktotal'  '14'
                                            'date'  '1973'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-eos;set-pl-sced'
                                             'bpm'  '154'
                                             'key'  '9B'
                                        'acoustid'  'ce2c92ec-4f09-46f6-86ee-69f7150e2cca'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            ' 00000655 00000966 00002102'
'COMM:iTunNORM:eng'                                 (' 00000655 00000966 00002102 00002FCC 00009C85 0000C395 00007166 000067FE '
 '0001ADDE 0001ADC7')
'TALB' (Album/Movie/Show title)                     'Aladdin Sane'
'TBPM' (BPM (beats per minute))                     '154'
'TCON' (Content type, a.k.a. Genre)                 ['ifs-songwriter-eos', 'set-pl-sced']
'TDOR' (Original release time)                      '1973'
'TDRC' (Recording time)                             '1973'
'TIT2' (Title/songname/content description)         "John, I'm Only Dancing"
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'David Bowie'
'TPE2' (Band/orchestra/accompaniment)               'David Bowie'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '14/14'
'TSO2'                                              'Bowie, David'
'TSOP' (Performer sort order)                       'Bowie, David'
'TXXX:Acoustid Id'                                  'ce2c92ec-4f09-46f6-86ee-69f7150e2cca'
'TXXX:Artists'                                      'David Bowie'
'TXXX:MusicBrainz Album Artist Id'                  '5441c29d-3602-4898-b1a1-b77fa23b8e50'
'TXXX:MusicBrainz Album Id'                         '8a99e39e-2b80-4fb7-a30f-b53bdf965997'
'TXXX:MusicBrainz Album Status'                     'bootleg'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '5441c29d-3602-4898-b1a1-b77fa23b8e50'
'TXXX:MusicBrainz Release Group Id'                 '50f8710f-3ae6-319b-85a7-afe783f13449'
'TXXX:MusicBrainz Release Track Id'                 'd91f5eef-6c65-33e1-b4a4-ba6ed7b13914'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['rock', 'glam']
'TXXX:lastfmtags'                                   ['classic rock', '80s', 'alternative', 'rock', 'glam rock']
'TXXX:originalyear'                                 '1973'
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.84 dB'
'TXXX:replaygain_track_peak'                        '0.527403'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'6ee94cfe-42fb-4edc-82a5-01d97796d645')
'USLT::XXX'                                         ("Well Anne's pretty neat,\r\n"
 'She always eats her meat,\r\n'
 'Joe is awful strong,\r\n'
 "Bet your life he's puttin' us on.\r\n"
 'Oh lordy!\r\n'
 'Oh Lordy!\r\n'
 "You know I need some lovin'\r\n"
 "I'm movin', touch me!\r\n"
 'CHORUS\r\n'
 "John, I'm only dancing,\r\n"
 'She turns me on,\r\n'
 "But I'm only dancing,\r\n"
 'she turns me on.\r\n'
 "But don't get me wrong.\r\n"
 "I'm only dancing!\r\n"
 '\r\n'
 'Jack is so nice and clean\r\n'
 'Life is a well thumbed machine\r\n'
 "I saw you watchin' from the stairs\r\n"
 "you're everyone who ever cared.\r\n"
 'Oh lordy!\r\n'
 'Oh lordy!\r\n'
 "You know I need some lovin'\r\n"
 "I'm movin'\r\n"
 'Touch me!\r\n'
 'CHORUS (x2)\r\n'
 'Dancing!\r\n'
 "Won't someone touch me.\r\n"
 'TOUCH ME!\r\n'
 'WOAH!')

========================== row from database ==========================
                                              'id'  1515824
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/David Bowie/[1973] Aladdin Sane/14 John, I_m Only Dancing.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  167
                                           'genre'  ifs-songwriter-eos;set-pl-sced
                                        'filesize'  2729765
                                           'mtime'  1636400835
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos [1973] 14 I_m ifs songwriter eos;set pl sced
                                      'tag_artist'  David Bowie
                                     'tag_release'  Aladdin Sane
                                       'tag_title'  John, I'm Only Dancing
                                             'bpm'  154.0
                                    'search_title'  'dancing':7 'i':3 'im':5 'john':1,2 'm':4 'only':6
                                   'search_artist'  'bowie':2 'david':1
                                  'search_release'  'aladdin':1 'sane':2
                                     'search_rest'  '00singer':1 '1973':4,5 'eos':3,9,11 'i':6 'ifs':8 'm':7 'pl':13 'sced':14 'set':10,12 'songwriter':2
                                    'search_combo'  '00singer':12 '1973':15,16 'aladdin':10C 'bowie':9B 'dancing':7A 'david':8B 'eos':14,20,22 'i':3A,17 'ifs':19 'im':5A 'john':1A,2A 'm':4A,18 'only':6A 'pl':24 'sane':11C 'sced':25 'set':21,23 'songwriter':13
                                    'tag_tracknum'  14
                                      'num_images'  1
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-1', 'q-chart-4', 'q-other-3', 'Q-HAP-2', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['classic rock', '80s', 'alternative', 'rock', 'glam rock']
                                        'tag_date'  1973
                                     'discogstags'  ['rock', 'glam']

============================== file details ==============================
                                           'mtime'  1636400834.8566103  (2021-11-08 20:47:14)
                             'size'  2729765