======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '307'
                                          'artist'  'Astor Piazzolla'
                                     'text_people'  'Astor Piazzolla'
                                         'release'  'Homenaje'
                                           'title'  'Contra Milonga a La Funerala'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-3', "
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 "'q-chart-3', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['contemporary classical', 'tango nuevo', 'argentina', 'jazz', 'tango']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  '10'
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'loc-style-tango or milonga;loc-samerica-argentina;set-pl-sced'
                                             'bpm'  '108.879'
                                             'key'  '8A'
                                        'acoustid'  '0ec9eeaa-a2c5-48f2-96ed-9df44052ee9e'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            ' 000004D4 000006B6 00005E54'
'COMM:iTunNORM:eng'                                 (' 000004D4 000006B6 00005E54 0000433F 0000E978 000341FA 00006379 0000792B '
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'COMM:iTunPGAP:eng'                                 '0/'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 0000078C 0000000000CF0864 00000000 00709D64 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'COMM:iTunes_CDDB_IDs:eng'                          '10+C76469448B8A473F2702FC97A7ADEADD+65266'
'TALB' (Album/Movie/Show title)                     'Homenaje'
'TBPM' (BPM (beats per minute))                     '108.879'
'TCOM' (Composer)                                   'Astor Piazzolla'
'TCON' (Content type, a.k.a. Genre)                 ['loc-style-tango or milonga', 'loc-samerica-argentina', 'set-pl-sced']
'TDRC' (Recording time)                             '2006'
'TENC' (Encoded by)                                 'iTunes v7.5'
'TIT2' (Title/songname/content description)         'Contra Milonga a La Funerala'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Astor Piazzolla'
'TPE2' (Band/orchestra/accompaniment)               'Astor Piazzolla'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '6/10'
'TSO2'                                              'Piazzolla, Astor'
'TSOP' (Performer sort order)                       'Piazzolla, Astor'
'TXXX:Acoustid Id'                                  '0ec9eeaa-a2c5-48f2-96ed-9df44052ee9e'
'TXXX:MusicBrainz Album Artist Id'                  'e280268a-a5ab-4bb0-be4d-ec470ca59131'
'TXXX:MusicBrainz Album Id'                         '5343fde4-31ba-464f-86b2-59e7e3522099'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'e280268a-a5ab-4bb0-be4d-ec470ca59131'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['contemporary classical', 'tango nuevo', 'argentina', 'jazz', 'tango']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.94 dB'
'TXXX:replaygain_track_peak'                        '0.555487'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'a42998fc-c7e0-463b-969a-4c94d97ff826')

========================== row from database ==========================
                                              'id'  1385124
                                            'path'  /data/Music/Bulk/00localcharacter/Tango Chill Out Experience - Astor Piazzolla/[2006] Homenaje_ Adiós Nonino y sus temas más recordados/06 Contra milonga a la funerala.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  307
                                           'genre'  loc-style-tango or milonga;loc-samerica-argentina;set-pl-sced
                                        'filesize'  7425824
                                           'mtime'  1620528262
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter Tango Chill Out Experience [2006] Homenaje_ Adiós Nonino y sus temas más recordados 06 milonga funerala loc style tango milonga;loc samerica argentina;set pl sced
                                      'tag_artist'  Astor Piazzolla
                                     'tag_release'  Homenaje
                                       'tag_title'  Contra Milonga a La Funerala
                                             'bpm'  108.879
                                    'search_title'  'a':3 'contra':1 'funerala':5 'la':4 'milonga':2
                                   'search_artist'  'astor':1 'piazzolla':2
                                  'search_release'  'homenaje':1
                                     'search_rest'  '2006':5,6 'adios':8,9 'argentina':26,28 'chill':2 'experience':4 'funerala':18 'homenaje':7 'loc':19,22,24 'mas':14,15 'milonga':17,21,23 'nonino':10 'out':3 'pl':30 'recordados':16 'samerica':25 'sced':31 'set':27,29 'style':20 'sus':12 'tango':1 'temas':13 'y':11
                                    'search_combo'  '2006':13,14 'a':3A 'adios':16,17 'argentina':34,36 'astor':6B 'chill':10 'contra':1A 'experience':12 'funerala':5A,26 'homenaje':8C,15 'la':4A 'loc':27,30,32 'mas':22,23 'milonga':2A,25,29,31 'nonino':18 'out':11 'piazzolla':7B 'pl':38 'recordados':24 'samerica':33 'sced':39 'set':35,37 'style':28 'sus':20 'tango':9 'temas':21 'y':19
                                    'tag_tracknum'  6
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-3', 'q-other-4', 'Q-HAP-3', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['contemporary classical', 'tango nuevo', 'argentina', 'jazz', 'tango']
                                        'tag_date'  2006
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620528262.472908  (2021-05-09 04:44:22)
                             'size'  7425824