======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '173'
                                          'artist'  'David Bowie'
                                     'text_people'  ''
                                         'release'  'The Rise and Fall of Ziggy Stardust and the Spiders From Mars'
                                           'title'  'Hang On to Yourself (demo)'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
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                                      'lastfmtags'  "['classic rock', '80s', 'alternative', 'rock', 'glam rock']"
                                     'discogstags'  "['rock', 'pop', 'art rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '18'
                                      'tracktotal'  '18'
                                            'date'  '1972'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-eos;set-pl-sced'
                                             'bpm'  '155'
                                             'key'  '6B'
                                        'acoustid'  'f155a9bb-9d5f-4640-8c42-503d7c0a510b'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:iTunNORM:eng'                                 (' 0000038F 0000037D 00000DF8 00000E60 00022325 00022325 0000491D 00004D5A '
 '00022325 00009C85')
'TALB' (Album/Movie/Show title)                     'The Rise and Fall of Ziggy Stardust and the Spiders From Mars'
'TBPM' (BPM (beats per minute))                     '155'
'TCON' (Content type, a.k.a. Genre)                 ['ifs-songwriter-eos', 'set-pl-sced']
'TDOR' (Original release time)                      '1972'
'TDRC' (Recording time)                             '1972'
'TIT2' (Title/songname/content description)         'Hang On to Yourself (demo)'
'TKEY' (Initial key)                                '6B'
'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)               '18/18'
'TSO2'                                              'Bowie, David'
'TSOP' (Performer sort order)                       'Bowie, David'
'TXXX:Acoustid Id'                                  'f155a9bb-9d5f-4640-8c42-503d7c0a510b'
'TXXX:Artists'                                      'David Bowie'
'TXXX:MusicBrainz Album Artist Id'                  '5441c29d-3602-4898-b1a1-b77fa23b8e50'
'TXXX:MusicBrainz Album Id'                         '92a5dfe8-db8a-477d-a5ce-06eb1e565463'
'TXXX:MusicBrainz Album Status'                     'bootleg'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '5441c29d-3602-4898-b1a1-b77fa23b8e50'
'TXXX:MusicBrainz Release Group Id'                 '6c9ae3dd-32ad-472c-96be-69d0a3536261'
'TXXX:MusicBrainz Release Track Id'                 '38577475-abe8-3f53-bb86-b63941b03d99'
'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', 'pop', 'art rock']
'TXXX:lastfmtags'                                   ['classic rock', '80s', 'alternative', 'rock', 'glam rock']
'TXXX:originalyear'                                 '1972'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.00 dB'
'TXXX:replaygain_track_peak'                        '0.692291'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'ffcdd97c-b949-41d0-866c-e5a150228eac')
'USLT::XXX'                                         ("She's a tongue twisting storm, she will come to the show tonight\r\n"
 'Praying to the light machine\r\n'
 "She wants my honey not my money she's a funky-thigh collector\r\n"
 "Layin on 'letric dreams\r\n"
 '\r\n'
 'Chorus:\r\n'
 "So come on, come on, we've really got a good thing going\r\n"
 "Come on, come on, if you think we're gonna make it\r\n"
 'You better hang on to yourself\r\n'
 '\r\n'
 "We can't dance, we don't talk much, just ball and play\r\n"
 'But then we move around like tigers on vaseline\r\n'
 'The bitter comes out better on a stolen guitar\r\n'
 "You're the blessed, we're the spiders from Mars\r\n"
 '\r\n'
 'Repeat Chorus')

========================== row from database ==========================
                                              'id'  465065
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/David Bowie/[1972] Ziggy Stardust/18 Bonus - Hang Onto Yourself (Demo).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  173
                                           'genre'  ifs-songwriter-eos;set-pl-sced
                                        'filesize'  2859322
                                           'mtime'  1637330491
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos [1972] 18 Bonus Onto (Demo) ifs songwriter eos;set pl sced
                                      'tag_artist'  David Bowie
                                     'tag_release'  The Rise and Fall of Ziggy Stardust and the Spiders From Mars
                                       'tag_title'  Hang On to Yourself (demo)
                                             'bpm'  155.0
                                    'search_title'  'demo':5,6 'hang':1 'on':2 'to':3 'yourself':4
                                   'search_artist'  'bowie':2 'david':1
                                  'search_release'  'and':3 'fall':4 'from':9 'mars':10 'of':5 'rise':2 'spiders':8 'stardust':7 'the':1 'ziggy':6
                                     'search_rest'  '00singer':1 '18':6 '1972':4,5 'bonus':7 'demo':9,10 'eos':3,12,14 'ifs':11 'onto':8 'pl':16 'sced':17 'set':13,15 'songwriter':2
                                    'search_combo'  '00singer':19 '18':24 '1972':22,23 'and':11C 'bonus':25 'bowie':8B 'david':7B 'demo':5A,6A,27,28 'eos':21,30,32 'fall':12C 'from':17C 'hang':1A 'ifs':29 'mars':18C 'of':13C 'on':2A 'onto':26 'pl':34 'rise':10C 'sced':35 'set':31,33 'songwriter':20 'spiders':16C 'stardust':15C 'the':9C 'to':3A 'yourself':4A 'ziggy':14C
                                    'tag_tracknum'  18
                                      'num_images'  1
                                             'key'  6B
                                           '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-2', 'q-chart-4', 'q-other-2', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['classic rock', '80s', 'alternative', 'rock', 'glam rock']
                                        'tag_date'  1972
                                     'discogstags'  ['rock', 'pop', 'art rock']

============================== file details ==============================
                                           'mtime'  1637330491.301054  (2021-11-19 15:01:31)
                             'size'  2859322