======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '217'
                                          'artist'  'Richard Tauber'
                                     'text_people'  ''
                                         'release'  '49 Original Recordings'
                                           'title'  'Roses of Picardy'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['austrian', 'myhits', 'myhitparade', 'classical', 'tenor']"
                                     'discogstags'  "['easy listening', 'jazz']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  '25'
                                            'date'  '1935'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '138.040'
                                             'key'  '11A'
                                        'acoustid'  '5ca1035d-a97e-4566-95c6-92ac87cf4f94'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     '49 Original Recordings'
'TBPM' (BPM (beats per minute))                     '138.040'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TDOR' (Original release time)                      '2001'
'TDRC' (Recording time)                             '1935'
'TIT2' (Title/songname/content description)         'Roses of Picardy'
'TKEY' (Initial key)                                '11A'
'TLEN' (Length)                                     '217926'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Richard Tauber'
'TPE2' (Band/orchestra/accompaniment)               'Richard Tauber'
'TPOS' (Part of a set)                              '2/2'
'TPUB' (Publisher)                                  'Prism Leisure'
'TRCK' (Track number/Position in set)               '3/25'
'TSO2'                                              'Tauber, Richard'
'TSOP' (Performer sort order)                       'Tauber, Richard'
'TSST' (Set subtitle)                               'The Voice of Romance'
'TXXX:ASIN'                                         'B00005J9JX'
'TXXX:Acoustid Id'                                  '5ca1035d-a97e-4566-95c6-92ac87cf4f94'
'TXXX:BARCODE'                                      '5014293221122'
'TXXX:CATALOGNUMBER'                                'PLATBX 2211'
'TXXX:MusicBrainz Album Artist Id'                  'a52c2c88-0c51-46d5-b40d-76c8cd769a0c'
'TXXX:MusicBrainz Album Id'                         'ef4e2e80-9889-4c66-8c89-c511123f2b3e'
'TXXX:MusicBrainz Album Release Country'            'GB'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'compilation'
'TXXX:MusicBrainz Artist Id'                        'a52c2c88-0c51-46d5-b40d-76c8cd769a0c'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['easy listening', 'jazz']
'TXXX:lastfmtags'                                   ['austrian', 'myhits', 'myhitparade', 'classical', 'tenor']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.34 dB'
'TXXX:replaygain_track_peak'                        '0.595056'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'47d2ee39-dc27-419c-a8ad-a3e13d17cc23')

========================== row from database ==========================
                                              'id'  1530649
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/30_s collection/richard tauber - roses of picardy.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  217
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  3504128
                                           'mtime'  1620527931
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 30_s collection richard tauber roses picardy prerock jb jazz unsorted
                                      'tag_artist'  Richard Tauber
                                     'tag_release'  49 Original Recordings
                                       'tag_title'  Roses of Picardy
                                             'bpm'  138.04
                                    'search_title'  'of':2 'picardy':3 'roses':1
                                   'search_artist'  'richard':1 'tauber':2
                                  'search_release'  '49':1 'original':2 'recordings':3
                                     'search_rest'  '30':5 'collection':7 'country':4 'exotica':2 'jazz':1 'jb':13 'oldies':3 'picardy':11 'prerock':12 'richard':8 'roses':10 's':6 'tauber':9 'unsorted':14
                                    'search_combo'  '30':13 '49':6C 'collection':15 'country':12 'exotica':10 'jazz':9 'jb':21 'of':2A 'oldies':11 'original':7C 'picardy':3A,19 'prerock':20 'recordings':8C 'richard':4B,16 'roses':1A,18 's':14 'tauber':5B,17 'unsorted':22
                                    'tag_tracknum'  3
                                      'num_images'  1
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['austrian', 'myhits', 'myhitparade', 'classical', 'tenor']
                                        'tag_date'  1935
                                     'discogstags'  ['easy listening', 'jazz']

============================== file details ==============================
                                           'mtime'  1620527931.0466232  (2021-05-09 04:38:51)
                             'size'  3504128