======================== unified (from filesystem) ========================
                                         'bitrate'  '228.842'
                                        'duration'  '195'
                                          'artist'  'John Mayall & The Bluesbreakers'
                                     'text_people'  'Freddie King; Sonny Thompson'
                                         'release'  'Blues Breakers With Eric Clapton'
                                           'title'  'Hideaway'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
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 "'q-chart-2', 'q-drums-2', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['blues rock', 'blues', 'british blues', 'rock', 'classic rock']"
                                     'discogstags'  ("['rock', 'blues', 'blues rock', 'electric blues', 'chicago blues', "
 "'harmonica blues']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '14'
                                      'tracktotal'  '24'
                                            'date'  '1998'
                                        'comments'  ''
                                           'genre'  'rock-pop-early-blues'
                                             'bpm'  '137'
                                             'key'  '11B'
                                        'acoustid'  '1204309f-c80a-4d4e-8346-ac5425553585'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Blues Breakers With Eric Clapton'
'TBPM' (BPM (beats per minute))                     '137'
'TCOM' (Composer)                                   'Freddie King; Sonny Thompson'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop-early-blues'
'TDOR' (Original release time)                      '1966'
'TDRC' (Recording time)                             '1998'
'TIT2' (Title/songname/content description)         'Hideaway'
'TKEY' (Initial key)                                '11B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'John Mayall & The Bluesbreakers'
'TPE2' (Band/orchestra/accompaniment)               'John Mayall & The Bluesbreakers'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Deram'
'TRCK' (Track number/Position in set)               '14/24'
'TSO2'                                              'Mayall, John & The Bluesbreakers'
'TSOP' (Performer sort order)                       'Mayall, John & The Bluesbreakers'
'TSRC' (ISRC (international standard recording code))  'GBF076922580'
'TSSE' (Software/Hardware and settings used for encoding)  'Lavf56.40.101'
'TXXX:ASIN'                                         'B0000249ZZ'
'TXXX:Acoustid Id'                                  '1204309f-c80a-4d4e-8346-ac5425553585'
'TXXX:Artists'                                      'John Mayall & The Bluesbreakers'
'TXXX:AverageLevel'                                 '7291'
'TXXX:BARCODE'                                      '042284482721'
'TXXX:CATALOGNUMBER'                                '844 827-2'
'TXXX:DeviceConformanceTemplate'                    'L1'
'TXXX:IsVBR'                                        '0'
'TXXX:MediaFoundationVersion'                       '2.112'
'TXXX:MusicBrainz Album Artist Id'                  '4756395c-57ed-4a63-afb2-01117f14dff6'
'TXXX:MusicBrainz Album Id'                         '310d86b6-2e4c-3fed-9705-b2f5b0d98e87'
'TXXX:MusicBrainz Album Release Country'            'GB'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '4756395c-57ed-4a63-afb2-01117f14dff6'
'TXXX:MusicBrainz Release Group Id'                 '2b031a2e-9d80-3240-b065-9445fb37f00b'
'TXXX:MusicBrainz Release Track Id'                 'b59c3b5d-379f-37f5-95b9-a0390a65efd3'
'TXXX:PeakValue'                                    '30625'
'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:SCRIPT'                                       'Latn'
'TXXX:WM/EncodingTime'                              '1687771776'
'TXXX:WM/MediaPrimaryClassID'                       '{D1607DBC-E323-4BE2-86A1-48A42A28441E}'
'TXXX:WM/Provider'                                  'AMG'
'TXXX:WM/ProviderRating'                            '8'
'TXXX:WM/ProviderStyle'                             'Country'
'TXXX:WM/UniqueFileIdentifier'                      'AMGa_id=R   567348;AMGp_id=P     4860;AMGt_id=T  5431142'
'TXXX:WM/Year'                                      '1966'
'TXXX:WMFSDKNeeded'                                 '0.0.0.0000'
'TXXX:WMFSDKVersion'                                '12.0.7600.16385'
'TXXX:discogstags'                                  ['rock',
 'blues',
 'blues rock',
 'electric blues',
 'chicago blues',
 'harmonica blues']
'TXXX:lastfmtags'                                   ['blues rock', 'blues', 'british blues', 'rock', 'classic rock']
'TXXX:originalyear'                                 '1966'
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.99 dB'
'TXXX:replaygain_track_peak'                        '0.348394'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'9810f4d7-1204-497d-bce0-4c3d8ced1e18')

========================== row from database ==========================
                                              'id'  1345033
                                            'path'  /data/Music/Bulk/00poprockelectronic/John Mayall/John Mayall-Eric Clapton/Bluesbreakers with Eric Clapton [Universal Japan]/14 Hideaway [Stereo Version].wma.mp3
                                         'working'  None
                                         'bitrate'  228
                                    'duration_sec'  195
                                           'genre'  rock-pop-early-blues
                                        'filesize'  5686079
                                           'mtime'  1620736741
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic with [Universal Japan] 14 [Stereo Version].wma rock pop early blues
                                      'tag_artist'  John Mayall & The Bluesbreakers
                                     'tag_release'  Blues Breakers With Eric Clapton
                                       'tag_title'  Hideaway
                                             'bpm'  137.0
                                    'search_title'  'hideaway':1
                                   'search_artist'  'bluesbreakers':4 'john':1 'mayall':2 'the':3
                                  'search_release'  'blues':1 'breakers':2 'clapton':5 'eric':4 'with':3
                                     'search_rest'  '00poprockelectronic':1 'blues':15 'early':14 'japan':5,6 'pop':13 'rock':12 'stereo':7,8 'universal':3,4 'version':9 'versionwma':11 'with':2 'wma':10
                                    'search_combo'  '00poprockelectronic':11 'blues':6C,25 'bluesbreakers':5B 'breakers':7C 'clapton':10C 'early':24 'eric':9C 'hideaway':1A 'japan':15,16 'john':2B 'mayall':3B 'pop':23 'rock':22 'stereo':17,18 'the':4B 'universal':13,14 'version':19 'versionwma':21 'with':8C,12 'wma':20
                                    'tag_tracknum'  14
                                      'num_images'  1
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['blues rock', 'blues', 'british blues', 'rock', 'classic rock']
                                        'tag_date'  1998
                                     'discogstags'  ['rock', 'blues', 'blues rock', 'electric blues', 'chicago blues', 'harmonica blues']

============================== file details ==============================
                                           'mtime'  1620736740.5719688  (2021-05-11 14:39:00)
                             'size'  5686079