======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '437'
                                          'artist'  'Limp Bizkit'
                                     'text_people'  ''
                                         'release'  'Significant Other'
                                           'title'  'Outro / Radio Sucks / The Mind of Les'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-4', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-4', 'q-play-2', "
 "'q-chart-4', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['alternative', 'rapcore', 'metal', 'nu metal', 'rock']"
                                     'discogstags'  "['hip hop', 'rock', 'nu metal']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '15'
                                      'tracktotal'  '16'
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'eid-metal-nu'
                                             'bpm'  '96'
                                             'key'  '7B'
                                        'acoustid'  'fc7ab448-22ff-4f6f-8720-fe0eb23c5931'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM::eng'                                         '02-07-2001'
'COMM:ID3v1 Comment:XXX'                            '02-07-2001'
'COMM:ID3v1 Comment:eng'                            '02-07-2001'
'TALB' (Album/Movie/Show title)                     'Significant Other'
'TBPM' (BPM (beats per minute))                     '96'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-nu'
'TDOR' (Original release time)                      '1999'
'TDRC' (Recording time)                             '2000-03-20'
'TIT2' (Title/songname/content description)         'Outro / Radio Sucks / The Mind of Les'
'TKEY' (Initial key)                                '7B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Limp Bizkit feat. Matt Pinfield / Limp Bizkit feat. Les Claypool'
'TPE2' (Band/orchestra/accompaniment)               'Limp Bizkit'
'TPOS' (Part of a set)                              '1/2'
'TPUB' (Publisher)                                  'Interscope Records'
'TRCK' (Track number/Position in set)               '15/16'
'TSO2'                                              'Limp Bizkit'
'TSOP' (Performer sort order)                       'Limp Bizkit feat. Pinfield, Matt / Limp Bizkit feat. Claypool, Les'
'TSRC' (ISRC (international standard recording code))  'USIR19902320'
'TXXX:Acoustid Id'                                  'fc7ab448-22ff-4f6f-8720-fe0eb23c5931'
'TXXX:Artists'                                      'Limp Bizkit/Matt Pinfield/Limp Bizkit/Les Claypool'
'TXXX:BARCODE'                                      '0606949065126'
'TXXX:CATALOGNUMBER'                                '490 651-2'
'TXXX:MusicBrainz Album Artist Id'                  '8f9d6bb2-dba4-4cca-9967-cc02b9f4820c'
'TXXX:MusicBrainz Album Id'                         'b2cd051c-2cc8-42d2-9e5d-8ce41a2f133b'
'TXXX:MusicBrainz Album Release Country'            'AU'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '8f9d6bb2-dba4-4cca-9967-cc02b9f4820c/dc1bf537-edfe-4c91-b6bb-aa81e462a313/8f9d6bb2-dba4-4cca-9967-cc02b9f4820c/0b9deb50-f518-4205-99e3-80ac3f35e7a3'
'TXXX:MusicBrainz Release Group Id'                 '2234d0c4-5ee5-3388-8baa-49bcb23ebbbd'
'TXXX:MusicBrainz Release Track Id'                 'e9a5975a-8419-4d58-bf5a-c8a41118719f'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '4'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['hip hop', 'rock', 'nu metal']
'TXXX:lastfmtags'                                   ['alternative', 'rapcore', 'metal', 'nu metal', 'rock']
'TXXX:originalyear'                                 '1999'
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '4'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.38 dB'
'TXXX:replaygain_track_peak'                        '0.611168'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'ab274405-ecaa-488e-9863-b3d72e1b2707')

========================== row from database ==========================
                                              'id'  1294048
                                            'path'  /data/Music/Bulk/00poprockelectronic/Limp Bizkit/Significant Other/Limp Bizkit - Outro.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  437
                                           'genre'  eid-metal-nu
                                        'filesize'  7092037
                                           'mtime'  1620311124
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic eid metal nu
                                      'tag_artist'  Limp Bizkit
                                     'tag_release'  Significant Other
                                       'tag_title'  Outro / Radio Sucks / The Mind of Les
                                             'bpm'  96.0
                                    'search_title'  'les':7 'mind':5 'of':6 'outro':1 'radio':2 'sucks':3 'the':4
                                   'search_artist'  'bizkit':2 'limp':1
                                  'search_release'  'other':2 'significant':1
                                     'search_rest'  '00poprockelectronic':1 'eid':2 'metal':3 'nu':4
                                    'search_combo'  '00poprockelectronic':12 'bizkit':9B 'eid':13 'les':7A 'limp':8B 'metal':14 'mind':5A 'nu':15 'of':6A 'other':11C 'outro':1A 'radio':2A 'significant':10C 'sucks':3A 'the':4A
                                    'tag_tracknum'  15
                                      'num_images'  1
                                             'key'  7B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-4', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-4', 'q-other-2', 'Q-HAP-1', 'q-bass-2', 'q-grit-4']
                                      'lastfmtags'  ['alternative', 'rapcore', 'metal', 'nu metal', 'rock']
                                        'tag_date'  2000
                                     'discogstags'  ['hip hop', 'rock', 'nu metal']

============================== file details ==============================
                                           'mtime'  1620311124.1592953  (2021-05-06 16:25:24)
                             'size'  7092037