======================== unified (from filesystem) ========================
                                         'bitrate'  '144.23'
                                        'duration'  '178'
                                          'artist'  'John Lee Hooker'
                                     'text_people'  'Traditional'
                                         'release'  "Jack O' Diamonds: 1949 Recordings"
                                           'title'  'Ezekiel Saw the Wheel'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-3', 'Q-LOCALNESS-3', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-2', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['guitar', 'blues', 'jazz', 'delta blues', 'classic blues']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  ''
                                            'date'  '1949'
                                        'comments'  ''
                                           'genre'  'prerock-jb-blues'
                                             'bpm'  '107.836'
                                             'key'  '3B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     "Jack O' Diamonds: 1949 Recordings"
'TBPM' (BPM (beats per minute))                     '107.836'
'TCOM' (Composer)                                   'Traditional'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-blues'
'TDRC' (Recording time)                             '1949'
'TIT2' (Title/songname/content description)         'Ezekiel Saw the Wheel'
'TKEY' (Initial key)                                '3B'
'TPE1' (Lead performer(s)/Soloist(s))               'John Lee Hooker'
'TPE2' (Band/orchestra/accompaniment)               'John Lee Hooker'
'TPUB' (Publisher)                                  'Eagle'
'TRCK' (Track number/Position in set)               '7'
'TSSE' (Software/Hardware and settings used for encoding)  'Lavf56.40.101'
'TXXX:DeviceConformanceTemplate'                    'L1'
'TXXX:IsVBR'                                        '0'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:WM/EncodingTime'                              '18446744072654834176'
'TXXX:WM/MediaPrimaryClassID'                       '{D1607DBC-E323-4BE2-86A1-48A42A28441E}'
'TXXX:WM/Provider'                                  'AMG'
'TXXX:WM/ProviderRating'                            '6'
'TXXX:WM/ProviderStyle'                             'Blues'
'TXXX:WM/UniqueFileIdentifier'                      'AMGa_id=R   687642;AMGp_id=P      371;AMGt_id=T  7013436'
'TXXX:WM/WMADRCAverageReference'                    '7101'
'TXXX:WM/WMADRCPeakReference'                       '32718'
'TXXX:WM/Year'                                      '2004'
'TXXX:WMFSDKNeeded'                                 '0.0.0.0000'
'TXXX:WMFSDKVersion'                                '10.00.00.3802'
'TXXX:lastfmtags'                                   ['guitar', 'blues', 'jazz', 'delta blues', 'classic blues']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.65 dB'
'TXXX:replaygain_track_peak'                        '0.503502'

========================== row from database ==========================
                                              'id'  1530832
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/John Lee Hooker - Jack O_ Diamonds- 1949 Recordings/07 Ezekiel Saw the Wheel.wma.mp3
                                         'working'  None
                                         'bitrate'  144
                                    'duration_sec'  178
                                           'genre'  prerock-jb-blues
                                        'filesize'  3219747
                                           'mtime'  1620402336
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country O_ 07 Wheel.wma prerock jb blues
                                      'tag_artist'  John Lee Hooker
                                     'tag_release'  Jack O' Diamonds: 1949 Recordings
                                       'tag_title'  Ezekiel Saw the Wheel
                                             'bpm'  107.836
                                    'search_title'  'ezekiel':1 'saw':2 'the':3 'wheel':4
                                   'search_artist'  'hooker':3 'john':1 'lee':2
                                  'search_release'  '1949':6 'diamonds':4,5 'jack':1 'o':2,3 'recordings':7
                                     'search_rest'  'blues':11 'country':4 'exotica':2 'jazz':1 'jb':10 'o':5 'oldies':3 'prerock':9 'wheel':6 'wheelwma':8 'wma':7
                                    'search_combo'  '1949':13C 'blues':25 'country':18 'diamonds':11C,12C 'exotica':16 'ezekiel':1A 'hooker':7B 'jack':8C 'jazz':15 'jb':24 'john':5B 'lee':6B 'o':9C,10C,19 'oldies':17 'prerock':23 'recordings':14C 'saw':2A 'the':3A 'wheel':4A,20 'wheelwma':22 'wma':21
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  3B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-2', 'q-drums-2', 'q-syn-1', 'q-chart-3', 'q-other-4', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['guitar', 'blues', 'jazz', 'delta blues', 'classic blues']
                                        'tag_date'  1949
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620402335.5047321  (2021-05-07 17:45:35)
                             'size'  3219747