======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '273'
                                          'artist'  'Sade'
                                     'text_people'  ''
                                         'release'  'Knuffelrock Special Edition: Soul / R&B'
                                           'title'  'By Your Side'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-HHRNBTT-3', "
 "'Q-UNU-1', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['love', 'jazz', 'female vocalists', 'soul']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '17'
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'hip hop or rnb or rap or turntablism'
                                             'bpm'  '146'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Knuffelrock Special Edition: Soul / R&B'
'TBPM' (BPM (beats per minute))                     '146'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'hip hop or rnb or rap or turntablism'
'TDOR' (Original release time)                      '2001'
'TDRC' (Recording time)                             '2001'
'TIT2' (Title/songname/content description)         'By Your Side'
'TKEY' (Initial key)                                '3A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Sade'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Sony Music'
'TRCK' (Track number/Position in set)               '1/17'
'TSO2'                                              'Various Artists'
'TSOP' (Performer sort order)                       'Sade'
'TSRC' (ISRC (international standard recording code))  'GBARL1100341/GBBBM0002171'
'TXXX:Artists'                                      'Sade'
'TXXX:BARCODE'                                      '5099750235829'
'TXXX:CATALOGNUMBER'                                'SMM 502358 2'
'TXXX:MusicBrainz Album Artist Id'                  '89ad4ac3-39f7-470e-963a-56509c546377'
'TXXX:MusicBrainz Album Id'                         '98f5fe64-f6be-4ed5-ac7b-4b7866cdb774'
'TXXX:MusicBrainz Album Release Country'            'BE'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album/compilation'
'TXXX:MusicBrainz Artist Id'                        '67930b3e-e00b-469f-8c74-fd69f20522ec'
'TXXX:MusicBrainz Release Group Id'                 'af1b5472-ce3f-40ab-b410-e37f87929fea'
'TXXX:MusicBrainz Release Track Id'                 'f7533cf4-feb1-3a7b-9d80-ac3f400e6393'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '3'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['love', 'jazz', 'female vocalists', 'soul']
'TXXX:originalyear'                                 '2001'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.34 dB'
'TXXX:replaygain_track_peak'                        '0.673212'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'611703be-4157-4173-886f-b9fa0f2c4a36')

========================== row from database ==========================
                                              'id'  1333803
                                            'path'  /data/Music/Bulk/00poprockelectronic-poprock-indierock/knuffelrock special edition soul r&b/01 - Sade - By Your Side.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  273
                                           'genre'  hip hop or rnb or rap or turntablism
                                        'filesize'  6632337
                                           'mtime'  1620646412
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic poprock indierock knuffelrock special edition soul r&b 01 hip hop or rnb or rap or turntablism
                                      'tag_artist'  Sade
                                     'tag_release'  Knuffelrock Special Edition: Soul / R&B
                                       'tag_title'  By Your Side
                                             'bpm'  146.0
                                    'search_title'  'by':1 'side':3 'your':2
                                   'search_artist'  'sade':1
                                  'search_release'  'b':7 'edition':3,4 'knuffelrock':1 'r':6 'rb':8 'soul':5 'special':2
                                     'search_rest'  '00poprockelectronic':1 'b':9 'edition':6 'hip':11 'hop':12 'indierock':3 'knuffelrock':4 'or':13 'poprock':2 'r':8 'rap':15 'rb':10 'rnb':14 'soul':7 'special':5 'turntablism':16
                                    'search_combo'  '00poprockelectronic':13 'b':11C,21 'by':1A 'edition':7C,8C,18 'hip':23 'hop':24 'indierock':15 'knuffelrock':5C,16 'or':25 'poprock':14 'r':10C,20 'rap':27 'rb':12C,22 'rnb':26 'sade':4B 'side':3A 'soul':9C,19 'special':6C,17 'turntablism':28 'your':2A
                                    'tag_tracknum'  1
                                      'num_images'  1
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-3', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-4', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['love', 'jazz', 'female vocalists', 'soul']
                                        'tag_date'  2001
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620646411.9483593  (2021-05-10 13:33:31)
                             'size'  6632337