<pre>
======================== unified (from filesystem) ========================
                                         'bitrate'  '232.377'
                                        'duration'  '1379'
                                          'artist'  'John Mayall &amp; the Bluesbreakers'
                                     'text_people'  'John Mayall'
                                         'release'  'Bare Wires'
                                           'title'  'Bare Wires - Suite: Barewires/Where Did I Belong/Start ...'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['blues rock', 'blues', 'british blues', 'rock', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '1968'
                                        'comments'  ''
                                           'genre'  'rock-cppex-classic'
                                             'bpm'  '130.3'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================<mutagen.mp3.MPEGInfo object at 0x7f95382daa30>

'TALB' (Album/Movie/Show title)                     'Bare Wires'
'TBPM' (BPM (beats per minute))                     '130.3'
'TCOM' (Composer)                                   'John Mayall'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-classic'
'TDOR' (Original release time)                      '1968'
'TDRC' (Recording time)                             '1968'
'TIT2' (Title/songname/content description)         'Bare Wires - Suite: Barewires/Where Did I Belong/Start ...'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'John Mayall &amp; the Bluesbreakers'
'TPE2' (Band/orchestra/accompaniment)               'John Mayall &amp; the Bluesbreakers'
'TPUB' (Publisher)                                  'Deram'
'TRCK' (Track number/Position in set)               '1'
'TSSE' (Software/Hardware and settings used for encoding)  'Lavf56.40.101'
'TXXX:AverageLevel'                                 '4987'
'TXXX:DeviceConformanceTemplate'                    'L1'
'TXXX:IsVBR'                                        '0'
'TXXX:PeakValue'                                    '32417'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:WM/EncodingTime'                              '1289531008'
'TXXX:WM/MediaPrimaryClassID'                       '{D1607DBC-E323-4BE2-86A1-48A42A28441E}'
'TXXX:WM/Provider'                                  'AMG'
'TXXX:WM/ProviderRating'                            '6'
'TXXX:WM/ProviderStyle'                             'Rock'
'TXXX:WM/UniqueFileIdentifier'                      'AMGa_id=R    12586;AMGp_id=P     4860;AMGt_id=T  4722741'
'TXXX:WM/Year'                                      '1968'
'TXXX:WMFSDKNeeded'                                 '0.0.0.0000'
'TXXX:WMFSDKVersion'                                '11.0.5721.5251'
'TXXX:lastfmtags'                                   ['blues rock', 'blues', 'british blues', 'rock', 'classic rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.76 dB'
'TXXX:replaygain_track_peak'                        '0.800060'

========================== row from database ==========================
                                              'id'  1343021
                                            'path'  /data/Music/Bulk/00poprockelectronic/John Mayall/John Mayall & the Bluesbreakers/Bare Wires/01 Bare Wires - Suite- Barewires-Where Did I Belong-Start.wma.mp3
                                         'working'  None
                                         'bitrate'  232
                                    'duration_sec'  1379
                                           'genre'  rock-cppex-classic
                                        'filesize'  40072111
                                           'mtime'  1636039287
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 01 Start.wma rock cppex classic
                                      'tag_artist'  John Mayall & the Bluesbreakers
                                     'tag_release'  Bare Wires
                                       'tag_title'  Bare Wires - Suite: Barewires/Where Did I Belong/Start ...
                                             'bpm'  130.3
                                    'search_title'  'bare':1 'barewires':5 'barewireswhere':7 'belong':10 'belongstart':12 'did':8 'i':9 'start':11 'suite':3,4 'where':6 'wires':2
                                   'search_artist'  'bluesbreakers':4 'john':1 'mayall':2 'the':3
                                  'search_release'  'bare':1 'wires':2
                                     'search_rest'  '00poprockelectronic':1 'classic':7 'cppex':6 'rock':5 'start':2 'startwma':4 'wma':3
                                    'search_combo'  '00poprockelectronic':19 'bare':1A,17C 'barewires':5A 'barewireswhere':7A 'belong':10A 'belongstart':12A 'bluesbreakers':16B 'classic':25 'cppex':24 'did':8A 'i':9A 'john':13B 'mayall':14B 'rock':23 'start':11A,20 'startwma':22 'suite':3A,4A 'the':15B 'where':6A 'wires':2A,18C 'wma':21
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['blues rock', 'blues', 'british blues', 'rock', 'classic rock']
                                        'tag_date'  1968
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636039286.527141  (2021-11-04 16:21:26)
                             'size'  40072111