<pre>
======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '930'
                                          'artist'  'Arnold Dreyblatt &amp; The Orchestra of Excited Strings'
                                     'text_people'  ''
                                         'release'  'Propellers in Love'
                                           'title'  'High Life'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-2', 'q-play-3', "
 "'Q-PIANO-3', 'q-chart-1', 'q-drums-1', 'q-other-3', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['contemporary classical', 'minimalism', 'avant garde', 'experimental', "
 "'minimal']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  '7'
                                            'date'  '1988'
                                        'comments'  ''
                                           'genre'  'prerock-classical or classical instruments'
                                             'bpm'  '112.3'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================<mutagen.mp3.MPEGInfo object at 0x7f95382dadf0>

'TALB' (Album/Movie/Show title)                     'Propellers in Love'
'TBPM' (BPM (beats per minute))                     '112.3'
'TCON' (Content type, a.k.a. Genre)                 'prerock-classical or classical instruments'
'TDOR' (Original release time)                      '1988'
'TDRC' (Recording time)                             '1988'
'TIT2' (Title/songname/content description)         'High Life'
'TKEY' (Initial key)                                '12B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Arnold Dreyblatt &amp; The Orchestra of Excited Strings'
'TPE2' (Band/orchestra/accompaniment)               'Arnold Dreyblatt &amp; The Orchestra of Excited Strings'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'hat ART'
'TRCK' (Track number/Position in set)               '7/7'
'TSO2'                                              'Arnold Dreyblatt &amp; The Orchestra of Excited Strings'
'TSOP' (Performer sort order)                       'Arnold Dreyblatt &amp; The Orchestra of Excited Strings'
'TXXX:CATALOGNUMBER'                                'hat ART CD 6011'
'TXXX:MusicBrainz Album Artist Id'                  'e587e4ca-0e91-4e75-a099-00c3328ed7ee'
'TXXX:MusicBrainz Album Id'                         '172bd03e-96f4-4f20-aefc-993643b2280d'
'TXXX:MusicBrainz Album Release Country'            'CH'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'e587e4ca-0e91-4e75-a099-00c3328ed7ee'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PIANO'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['contemporary classical',
 'minimalism',
 'avant garde',
 'experimental',
 'minimal']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+6.63 dB'
'TXXX:replaygain_track_peak'                        '0.230018'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'fbae1d42-a8a3-4d43-986d-ee864878b8db')

========================== row from database ==========================
                                              'id'  690532
                                            'path'  /data/Music/Bulk/00instruments-classical/1988 - propellers in love/07 - high life.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  930
                                           'genre'  prerock-classical or classical instruments
                                        'filesize'  22337116
                                           'mtime'  1620561457
                                   'redo_metaread'  0
                                        'rest_str'   00instruments classical 1988 propellers love 07 high life prerock classical or classical instruments
                                      'tag_artist'  Arnold Dreyblatt & The Orchestra of Excited Strings
                                     'tag_release'  Propellers in Love
                                       'tag_title'  High Life
                                             'bpm'  112.3
                                    'search_title'  'high':1 'life':2
                                   'search_artist'  'arnold':1 'dreyblatt':2 'excited':6 'of':5 'orchestra':4 'strings':7 'the':3
                                  'search_release'  'in':2 'love':3 'propellers':1
                                     'search_rest'  '00instruments':1 '1988':3 'classical':2 'high':6 'instruments':10 'life':7 'love':5 'or':9 'prerock':8 'propellers':4
                                    'search_combo'  '00instruments':13 '1988':15 'arnold':3B 'classical':14 'dreyblatt':4B 'excited':8B 'high':1A,18 'in':11C 'instruments':22 'life':2A,19 'love':12C,17 'of':7B 'or':21 'orchestra':6B 'prerock':20 'propellers':10C,16 'strings':9B 'the':5B
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-3', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['contemporary classical', 'minimalism', 'avant garde', 'experimental', 'minimal']
                                        'tag_date'  1988
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620561457.4268725  (2021-05-09 13:57:37)
                             'size'  22337116