======================== unified (from filesystem) ========================
                                         'bitrate'  '191.717'
                                        'duration'  '329'
                                          'artist'  'Natalie Merchant'
                                     'text_people'  ''
                                         'release'  'Tigerlily'
                                           'title'  'Seven Years'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-OLDST-3', "
 "'Q-HHRNBTT-1', 'Q-PLAY-2', 'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-1', "
 "'q-chart-3', 'q-drums-4', 'q-other-2', 'q-vocals-3', 'q-mixbeat-1', "
 "'Q-PIANO-2']")
                                      'lastfmtags'  "['alternative', 'female vocalists', 'pop', 'folk', 'singer songwriter']"
                                     'discogstags'  "['rock', 'alternative rock', 'folk rock', 'soft rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '11'
                                      'tracktotal'  '11'
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-pop'
                                             'bpm'  '132.444'
                                             'key'  '7B'
                                        'acoustid'  ''
rest: ''

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

'APIC:Cover Image'                                  type PictureType.COVER_FRONT (Cover (front)) b'Cover Image'
                                     
'POPM:\x01ÿþ3'                                      POPM(email='\x01ÿþ3', rating=153, count=0)
'TALB' (Album/Movie/Show title)                     'Tigerlily'
'TBPM' (BPM (beats per minute))                     '132.444'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-pop'
'TDOR' (Original release time)                      '1995'
'TDRC' (Recording time)                             '1995-06-20'
'TIPL' (Involved people list)                       TIPL(encoding=<Encoding.UTF16: 1>, people=[['engineer', '倀愀甀氀\u2000䄀渀琀漀渀攀氀氀'], ['攀渀最椀渀攀攀爀', '䄀渀搀爀攀眀\u2000倀愀最攀'], ['漀爀最愀渀Ⰰ\u2000瀀椀愀渀漀\u2000愀渀搀\u2000瘀椀戀爀愀瀀栀漀渀攀', '一愀琀愀氀椀攀\u2000䴀攀爀挀栀愀渀琀'], ['戀愀挀欀最爀漀甀渀搀\u2000瘀漀挀愀氀猀\u2000瘀漀挀愀氀', '䨀攀渀渀椀昀攀爀\u2000吀甀爀渀攀爀'], ['搀爀甀洀猀\u2000愀渀搀\u2000瀀攀爀挀甀猀猀椀漀渀', '倀攀琀攀爀\u2000夀愀渀漀眀椀琀稀'], ['\u3100㈀\u2000猀琀爀椀渀最\u2000最甀椀琀愀爀\u2000愀渀搀\u2000戀愀猀猀\u2000最甀椀琀愀爀', '䈀愀爀爀椀攀\u2000䴀愀最甀椀爀攀'], ['愀挀漀甀猀琀椀挀\u2000最甀椀琀愀爀\u2000愀渀搀\u2000攀氀攀挀琀爀椀挀\u2000最甀椀琀愀爀', '䨀攀渀渀椀昀攀爀\u2000吀甀爀渀攀爀']])
'TIT2' (Title/songname/content description)         'Seven Years'
'TKEY' (Initial key)                                '7B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Natalie Merchant'
'TPE2' (Band/orchestra/accompaniment)               'Natalie Merchant'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Elektra'
'TRCK' (Track number/Position in set)               '11/11'
'TSO2'                                              'Merchant, Natalie'
'TSOP' (Performer sort order)                       'Merchant, Natalie'
'TXXX:BARCODE'                                      '075596174527'
'TXXX:CATALOGNUMBER'                                'CD 61745'
'TXXX:FMPS_Rating'                                  '0.6'
'TXXX:MusicBrainz Album Artist Id'                  'ba03daa8-0a45-4432-881f-4de8e0e05305'
'TXXX:MusicBrainz Album Id'                         '600b0ccf-7564-4a30-8094-b330c9a80fac'
'TXXX:MusicBrainz Album Release Country'            'CA'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'ba03daa8-0a45-4432-881f-4de8e0e05305'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['rock', 'alternative rock', 'folk rock', 'soft rock']
'TXXX:lastfmtags'                                   ['alternative', 'female vocalists', 'pop', 'folk', 'singer songwriter']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.74 dB'
'TXXX:replaygain_track_peak'                        '0.642135'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'8bbbac64-cff5-4229-8f16-130c8d6a4978')

========================== row from database ==========================
                                              'id'  182669
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Natalie Merchant/11 - Seven Years.mp3
                                         'working'  None
                                         'bitrate'  191
                                    'duration_sec'  329
                                           'genre'  ifs-songwriter-pop
                                        'filesize'  7927939
                                           'mtime'  1620646383
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 11 ifs songwriter pop
                                      'tag_artist'  Natalie Merchant
                                     'tag_release'  Tigerlily
                                       'tag_title'  Seven Years
                                             'bpm'  132.444
                                    'search_title'  'seven':1 'years':2
                                   'search_artist'  'merchant':2 'natalie':1
                                  'search_release'  'tigerlily':1
                                     'search_rest'  '00singer':1 'eos':3 'ifs':4 'pop':5 'songwriter':2
                                    'search_combo'  '00singer':6 'eos':8 'ifs':9 'merchant':4B 'natalie':3B 'pop':10 'seven':1A 'songwriter':7 'tigerlily':5C 'years':2A
                                    'tag_tracknum'  11
                                      'num_images'  1
                                             'key'  7B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'Q-PIANO-2', 'q-mixbeat-1', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-1', 'q-chart-3', 'q-other-2', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['alternative', 'female vocalists', 'pop', 'folk', 'singer songwriter']
                                        'tag_date'  1995
                                     'discogstags'  ['rock', 'alternative rock', 'folk rock', 'soft rock']

============================== file details ==============================
                                           'mtime'  1620646382.576625  (2021-05-10 13:33:02)
                             'size'  7927939