======================== unified (from filesystem) ========================
                                         'bitrate'  '219.112'
                                        'duration'  '73'
                                          'artist'  'Jethro Tull'
                                     'text_people'  ''
                                         'release'  'Aqualung (25th Anniversary Edition) [UK]'
                                           'title'  'Slipstream'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-4', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['folk rock', 'rock', 'progressive rock', 'progressive', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  ''
                                            'date'  '1971'
                                        'comments'  ''
                                           'genre'  'rock-cppex-classic;rock-cppex-progressive'
                                             'bpm'  '143.721'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Aqualung (25th Anniversary Edition) [UK]'
'TBPM' (BPM (beats per minute))                     '143.721'
'TCON' (Content type, a.k.a. Genre)                 ['rock-cppex-classic', 'rock-cppex-progressive']
'TDRC' (Recording time)                             '1971'
'TIT2' (Title/songname/content description)         'Slipstream'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Jethro Tull                    '
'TPE2' (Band/orchestra/accompaniment)               'Jethro Tull'
'TRCK' (Track number/Position in set)               '9'
'TSSE' (Software/Hardware and settings used for encoding)  'Lavf56.40.101'
'TXXX:DeviceConformanceTemplate'                    'L1'
'TXXX:IsVBR'                                        '0'
'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'                              '927970048'
'TXXX:WM/MediaPrimaryClassID'                       '{D1607DBC-E323-4BE2-86A1-48A42A28441E}'
'TXXX:WM/WMADRCAverageReference'                    '1841'
'TXXX:WM/WMADRCPeakReference'                       '21900'
'TXXX:WM/Year'                                      '1998'
'TXXX:WMFSDKNeeded'                                 '0.0.0.0000'
'TXXX:WMFSDKVersion'                                '9.00.00.3250'
'TXXX:lastfmtags'                                   ['folk rock', 'rock', 'progressive rock', 'progressive', 'classic rock']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.10 dB'
'TXXX:replaygain_track_peak'                        '0.950386'

========================== row from database ==========================
                                              'id'  1349581
                                            'path'  /data/Music/Bulk/00poprockelectronic/Jethro Tull/Jethro Tull - 1971 - Aqualung/09 Slipstream.wma.mp3
                                         'working'  None
                                         'bitrate'  219
                                    'duration_sec'  73
                                           'genre'  rock-cppex-classic;rock-cppex-progressive
                                        'filesize'  2013833
                                           'mtime'  1636039248
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 1971 09 Slipstream.wma rock cppex classic;rock cppex progressive
                                      'tag_artist'  Jethro Tull
                                     'tag_release'  Aqualung (25th Anniversary Edition) [UK]
                                       'tag_title'  Slipstream
                                             'bpm'  143.721
                                    'search_title'  'slipstream':1
                                   'search_artist'  'jethro':1 'tull':2
                                  'search_release'  '25th':2,3 'anniversary':4 'aqualung':1 'edition':5,6 'uk':7,8
                                     'search_rest'  '00poprockelectronic':1 '1971':2 'classic':8,10 'cppex':7 'progressive':12 'rock':6,9,11 'slipstream':3 'slipstreamwma':5 'wma':4
                                    'search_combo'  '00poprockelectronic':12 '1971':13 '25th':5C,6C 'anniversary':7C 'aqualung':4C 'classic':19,21 'cppex':18 'edition':8C,9C 'jethro':2B 'progressive':23 'rock':17,20,22 'slipstream':1A,14 'slipstreamwma':16 'tull':3B 'uk':10C,11C 'wma':15
                                    'tag_tracknum'  9
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-3']
                                      'lastfmtags'  ['folk rock', 'rock', 'progressive rock', 'progressive', 'classic rock']
                                        'tag_date'  1971
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636039247.9469838  (2021-11-04 16:20:47)
                             'size'  2013833