<pre>
======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '158'
                                          'artist'  'Gringo'
                                     'text_people'  ''
                                         'release'  'french tanguerooo'
                                           'title'  'Viva El Tango'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-OLDST-3', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['progressive rock', 'canterbury scene', 'psychedelic rock', 'stoner rock', "
 "'jazz hop']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'loc-eur-france'
                                             'bpm'  '133.933'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================<mutagen.mp3.MPEGInfo object at 0x7f9537d81d30>

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''<br/>                                     <img style="width:150px" src="image?fid=929446"/>
'COMM:Bio:eng'                                      ("We started 'Gringo' around 4 years ago with an aim to combine dance/club "
 'sound with our love for latin music.We achieved No 1 in Billboard Talent Net '
 'last year(that was purely from fan votes), Salsa De New York was used in a '
 "US feature film 'Low Life'.Most of the tracks have appeared on various dance "
 "compilations around the world - US, Germany, Spain, SE Asia etc.'Salsa de "
 "NY' should be coming out (we hope soon!) as a single on a largest  "
 'independent label in Spain.')
'COMM:ID3v1 Comment:XXX'                            "We started 'Gringo' around 4"
'TALB' (Album/Movie/Show title)                     'french tanguerooo'
'TBPM' (BPM (beats per minute))                     '133.933'
'TCON' (Content type, a.k.a. Genre)                 'loc-eur-france'
'TDRC' (Recording time)                             '1995'
'TFLT' (File type)                                  'MPG/3'
'TIT2' (Title/songname/content description)         'Viva El Tango'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Gringo'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['progressive rock',
 'canterbury scene',
 'psychedelic rock',
 'stoner rock',
 'jazz hop']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.39 dB'
'TXXX:replaygain_track_peak'                        '0.549019'
'UFID:mailto:webmaster@mp3.com'                     UFID(owner='mailto:webmaster@mp3.com', data=b'675584')
'USLT:Lyrics:eng'                                   "I'm hot about Tango, I'm sexy about Tango \r\nViva el Tango etc... "

========================== row from database ==========================
                                              'id'  929446
                                            'path'  /data/Music/Bulk/00localcharacter/french tanguerooo/gringo - viva el tango.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  158
                                           'genre'  loc-eur-france
                                        'filesize'  2545536
                                           'mtime'  1620536242
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter gringo viva el tango loc eur france
                                      'tag_artist'  Gringo
                                     'tag_release'  french tanguerooo
                                       'tag_title'  Viva El Tango
                                             'bpm'  133.933
                                    'search_title'  'el':2 'tango':3 'viva':1
                                   'search_artist'  'gringo':1
                                  'search_release'  'french':1 'tanguerooo':2
                                     'search_rest'  'el':3 'eur':6 'france':7 'gringo':1 'loc':5 'tango':4 'viva':2
                                    'search_combo'  'el':2A,9 'eur':12 'france':13 'french':5C 'gringo':4B,7 'loc':11 'tango':3A,10 'tanguerooo':6C 'viva':1A,8
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-1', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['progressive rock', 'canterbury scene', 'psychedelic rock', 'stoner rock', 'jazz hop']
                                        'tag_date'  1995
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620536241.8484087  (2021-05-09 06:57:21)
                             'size'  2545536