======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '456'
                                          'artist'  'Massive Attack'
                                     'text_people'  ''
                                         'release'  '100th Window'
                                           'title'  'Butterfly Caught'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['electronica', 'electronic', 'downtempo', 'trip hop', 'chillout']"
                                     'discogstags'  "['electronic', 'leftfield', 'trip hop', 'downtempo']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  '10'
                                            'date'  '2003'
                                        'comments'  ''
                                           'genre'  'electronic-trip hop or downtempo or acid jazz'
                                             'bpm'  '141'
                                             'key'  '7B'
                                        'acoustid'  '8e935844-31ec-410f-b61e-d3a5f564734a'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'PRIV:AverageLevel:Ó\x1b\x00\x00'                   PRIV(owner='AverageLevel', data=b'\xd3\x1b\x00\x00')
'PRIV:PeakValue:ÿ\x7f\x00\x00'                      PRIV(owner='PeakValue', data=b'\xff\x7f\x00\x00')
'TALB' (Album/Movie/Show title)                     '100th Window'
'TBPM' (BPM (beats per minute))                     '141'
'TCON' (Content type, a.k.a. Genre)                 'electronic-trip hop or downtempo or acid jazz'
'TDOR' (Original release time)                      '2002'
'TDRC' (Recording time)                             '2003'
'TIT2' (Title/songname/content description)         'Butterfly Caught'
'TKEY' (Initial key)                                '7B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Massive Attack'
'TPE2' (Band/orchestra/accompaniment)               'Massive Attack'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '5/10'
'TSO2'                                              'Massive Attack'
'TSOP' (Performer sort order)                       'Massive Attack'
'TSRC' (ISRC (international standard recording code))  'GBAAA0201161'
'TXXX:Acoustid Id'                                  '8e935844-31ec-410f-b61e-d3a5f564734a'
'TXXX:Artists'                                      'Massive Attack'
'TXXX:MusicBrainz Album Artist Id'                  '10adbe5e-a2c0-4bf3-8249-2b4cbf6e6ca8'
'TXXX:MusicBrainz Album Id'                         '9c41c9a4-47ae-43dc-aed1-d1abbc3b4c87'
'TXXX:MusicBrainz Album Release Country'            'NZ'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '10adbe5e-a2c0-4bf3-8249-2b4cbf6e6ca8'
'TXXX:MusicBrainz Release Group Id'                 'd9c12c5f-8ad8-334a-a238-fad5a91af242'
'TXXX:MusicBrainz Release Track Id'                 '566a7e74-5c4b-3713-a9bc-407aae19401f'
'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'                                  ['electronic', 'leftfield', 'trip hop', 'downtempo']
'TXXX:lastfmtags'                                   ['electronica', 'electronic', 'downtempo', 'trip hop', 'chillout']
'TXXX:originalyear'                                 '2002'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.43 dB'
'TXXX:replaygain_track_peak'                        '0.613159'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'66bdb15d-ef12-49ed-9494-c3f9cf9391fb')
'USLT::XXX'                                         ('Weightless falls honeysuckle\r\n'
 'Strangers (strange this)\r\n'
 'Lights from pages\r\n'
 'Paper thin thing\r\n'
 '\r\n'
 'Protected by the naked eye\r\n'
 'Pearly sunrise\r\n'
 '\r\n'
 'Nearly worn\r\n'
 'Kneeling like a supplicant\r\n'
 'Darkened skin\r\n'
 'Afraid to see\r\n'
 'Radiate\r\n'
 'Open lips\r\n'
 'Keep smiling for me\r\n'
 'Darkened skin\r\n'
 'Afraid to see\r\n'
 'Radiate\r\n'
 'Open lips\r\n'
 'Keep smiling for me\r\n'
 '\r\n'
 'Weightless cool honeysuckle\r\n'
 'Fair skin freckles\r\n'
 'Uncut teeth\r\n'
 'Tranquil eyes\r\n'
 'Bite my lips\r\n'
 'Bite my lips\r\n'
 'Shhh\r\n'
 '\r\n'
 'Under your feet')

========================== row from database ==========================
                                              'id'  1456081
                                            'path'  /data/Music/Bulk/00poprockelectronic/00trip/Massive Attack/100th window/05 - butterfly caught.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  456
                                           'genre'  electronic-trip hop or downtempo or acid jazz
                                        'filesize'  14670156
                                           'mtime'  1636910712
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00trip window 05 butterfly caught electronic trip hop or downtempo or acid jazz
                                      'tag_artist'  Massive Attack
                                     'tag_release'  100th Window
                                       'tag_title'  Butterfly Caught
                                             'bpm'  141.0
                                    'search_title'  'butterfly':1 'caught':2
                                   'search_artist'  'attack':2 'massive':1
                                  'search_release'  '100th':1 'window':2
                                     'search_rest'  '00poprockelectronic':1 '00trip':2 'acid':11 'butterfly':4 'caught':5 'downtempo':10 'electronic':6 'hop':8 'jazz':12 'or':9 'trip':7 'window':3
                                    'search_combo'  '00poprockelectronic':7 '00trip':8 '100th':5C 'acid':17 'attack':4B 'butterfly':1A,10 'caught':2A,11 'downtempo':16 'electronic':12 'hop':14 'jazz':18 'massive':3B 'or':15 'trip':13 'window':6C,9
                                    'tag_tracknum'  5
                                      'num_images'  1
                                             'key'  7B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['electronica', 'electronic', 'downtempo', 'trip hop', 'chillout']
                                        'tag_date'  2003
                                     'discogstags'  ['electronic', 'leftfield', 'trip hop', 'downtempo']

============================== file details ==============================
                                           'mtime'  1636910711.6268613  (2021-11-14 18:25:11)
                             'size'  14670156