======================== unified (from filesystem) ========================
                                         'bitrate'  '112.0'
                                        'duration'  '769'
                                          'artist'  "Mother Mallard's Portable Masterpiece Company"
                                     'text_people'  ''
                                         'release'  '1970-1973'
                                           'title'  'Music'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-UNU-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-1', 'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  ("['minimalism', 'instrumental', 'contemporary classical', 'electronic', "
 "'united states']")
                                     'discogstags'  "['modern classical', 'electronic', 'experimental']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  '5'
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'electronic'
                                             'bpm'  '94.2'
                                             'key'  '7A'
                                        'acoustid'  '95b36f68-db41-462b-be93-c960ee167d3f'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'PCNT' (Play counter)                               PCNT(count=0)
'PRIV:AverageLevel:{\t\x00\x00'                     PRIV(owner='AverageLevel', data=b'{\t\x00\x00')
'PRIV:PeakValue:!B\x00\x00'                         PRIV(owner='PeakValue', data=b'!B\x00\x00')
'PRIV:WM/MediaClassPrimaryID:¼}`Ñ#ãâK\x86¡H¤*(D\x1e'  PRIV(owner='WM/MediaClassPrimaryID', data=b'\xbc}`\xd1#\xe3\xe2K\x86\xa1H\xa4*(D\x1e')
'PRIV:WM/MediaClassSecondaryID:\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'  PRIV(owner='WM/MediaClassSecondaryID', data=b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
'TALB' (Album/Movie/Show title)                     '1970-1973'
'TBPM' (BPM (beats per minute))                     '94.2'
'TCON' (Content type, a.k.a. Genre)                 'electronic'
'TDOR' (Original release time)                      '1999'
'TDRC' (Recording time)                             '1999'
'TIT2' (Title/songname/content description)         'Music'
'TKEY' (Initial key)                                '7A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               "Mother Mallard's Portable Masterpiece Company"
'TPE2' (Band/orchestra/accompaniment)               "Mother Mallard's Portable Masterpiece Company"
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Cuneiform Records'
'TRCK' (Track number/Position in set)               '3/5'
'TSO2'                                              "Mother Mallard's Portable Masterpiece Company"
'TSOP' (Performer sort order)                       "Mother Mallard's Portable Masterpiece Company"
'TXXX:ASIN'                                         'B00000I03K'
'TXXX:Acoustid Id'                                  '95b36f68-db41-462b-be93-c960ee167d3f'
'TXXX:BARCODE'                                      '045775010922'
'TXXX:CATALOGNUMBER'                                'RUNE 109'
'TXXX:MusicBrainz Album Artist Id'                  'b60a4dcc-4e4b-4dbd-91c4-4f3421bf3412'
'TXXX:MusicBrainz Album Id'                         '0995d595-5acb-4b50-8a58-976f72ffc7f0'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'b60a4dcc-4e4b-4dbd-91c4-4f3421bf3412'
'TXXX:Q-HAP'                                        '3'
'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'                                  ['modern classical', 'electronic', 'experimental']
'TXXX:lastfmtags'                                   ['minimalism',
 'instrumental',
 'contemporary classical',
 'electronic',
 'united states']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.15 dB'
'TXXX:replaygain_track_peak'                        '0.434189'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'f0fa5882-4aa8-4a1d-9530-d25f5ffae192')

========================== row from database ==========================
                                              'id'  1532598
                                            'path'  /data/Music/Bulk/00poprockelectronic/00calmer/Mother Mallard_s Portable Masterpiece Company/[1974] Mother Mallard's Portable Masterpiece Co. 1970-1973/03. Music (1972).mp3
                                         'working'  None
                                         'bitrate'  112
                                    'duration_sec'  769
                                           'genre'  electronic
                                        'filesize'  10780617
                                           'mtime'  1636913223
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00calmer Mallard_s [1974] Co. 03. (1972) electronic
                                      'tag_artist'  Mother Mallard's Portable Masterpiece Company
                                     'tag_release'  1970-1973
                                       'tag_title'  Music
                                             'bpm'  94.2
                                    'search_title'  'music':1
                                   'search_artist'  'company':7 'mallard':2 'mallards':4 'masterpiece':6 'mother':1 'portable':5 's':3
                                  'search_release'  '1970':1 '19701973':3 '1973':2
                                     'search_rest'  '00calmer':2 '00poprockelectronic':1 '03':9,10 '1972':11,12 '1974':5,6 'co':7,8 'electronic':13 'mallard':3 's':4
                                    'search_combo'  '00calmer':13 '00poprockelectronic':12 '03':20,21 '1970':9C '19701973':11C '1972':22,23 '1973':10C '1974':16,17 'co':18,19 'company':8B 'electronic':24 'mallard':3B,14 'mallards':5B 'masterpiece':7B 'mother':2B 'music':1A 'portable':6B 's':4B,15
                                    'tag_tracknum'  3
                                      'num_images'  1
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', '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-1', 'q-syn-3', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['minimalism', 'instrumental', 'contemporary classical', 'electronic', 'united states']
                                        'tag_date'  1999
                                     'discogstags'  ['modern classical', 'electronic', 'experimental']

============================== file details ==============================
                                           'mtime'  1636913223.44313  (2021-11-14 19:07:03)
                             'size'  10780617