======================== unified (from filesystem) ========================
                                         'bitrate'  '224.0'
                                        'duration'  '266'
                                          'artist'  'Jon Rose'
                                     'text_people'  ''
                                         'release'  'Techno mit Störungen'
                                           'title'  '[untitled]'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'Q-UNU-4', 'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  ("['violin', 'avant garde', 'free improvisation', 'experimental', "
 "'improvisation']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '23'
                                      'tracktotal'  '34'
                                            'date'  '1996'
                                        'comments'  ''
                                           'genre'  'electronic-experimental'
                                             'bpm'  '88.0'
                                             'key'  '1A'
                                        'acoustid'  '3b253006-67d7-431f-95f1-d161fdfaedd9'
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Techno mit Störungen'
'TBPM' (BPM (beats per minute))                     '88.0'
'TCON' (Content type, a.k.a. Genre)                 'electronic-experimental'
'TDOR' (Original release time)                      '1996'
'TDRC' (Recording time)                             '1996'
'TIT2' (Title/songname/content description)         '[untitled]'
'TKEY' (Initial key)                                '1A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Jon Rose'
'TPE2' (Band/orchestra/accompaniment)               'Jon Rose'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Plag Dich Nicht'
'TRCK' (Track number/Position in set)               '23/34'
'TSO2'                                              'Rose, Jon'
'TSOP' (Performer sort order)                       'Rose, Jon'
'TXXX:ASIN'                                         'B00005YD3B'
'TXXX:Acoustid Id'                                  '3b253006-67d7-431f-95f1-d161fdfaedd9'
'TXXX:Artists'                                      'Jon Rose'
'TXXX:CATALOGNUMBER'                                '002'
'TXXX:MusicBrainz Album Artist Id'                  '1998d8a2-535d-45b3-9e7e-92f63276d15d'
'TXXX:MusicBrainz Album Id'                         'a5976130-5b63-4cd6-a445-a0b87f1d3ce1'
'TXXX:MusicBrainz Album Release Country'            'AT'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '1998d8a2-535d-45b3-9e7e-92f63276d15d'
'TXXX:MusicBrainz Release Group Id'                 '368dc4cf-6a0b-47b7-9f05-ba498b0c55a8'
'TXXX:MusicBrainz Release Track Id'                 '1fd52e51-6454-3628-8ec4-1c3f054d158c'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '4'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['violin', 'avant garde', 'free improvisation', 'experimental', 'improvisation']
'TXXX:originalyear'                                 '1996'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.41 dB'
'TXXX:replaygain_track_peak'                        '0.572459'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'4efcadd0-405a-4045-aba8-02d7c1439fc8')

========================== row from database ==========================
                                              'id'  728660
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Techno Mit Störungen/23 Techno Mit Störungen.mp3
                                         'working'  None
                                         'bitrate'  224
                                    'duration_sec'  266
                                           'genre'  electronic-experimental
                                        'filesize'  7458541
                                           'mtime'  1622762443
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Mit 23 Mit electronic experimental
                                      'tag_artist'  Jon Rose
                                     'tag_release'  Techno mit Störungen
                                       'tag_title'  [untitled]
                                             'bpm'  88.0
                                    'search_title'  'untitled':1,2
                                   'search_artist'  'jon':1 'rose':2
                                  'search_release'  'mit':2 'storungen':3,4 'techno':1
                                     'search_rest'  '23':2 'electronic':3 'experimental':4 'mit':1
                                    'search_combo'  '23':10 'electronic':11 'experimental':12 'jon':3B 'mit':6C,9 'rose':4B 'storungen':7C,8C 'techno':5C 'untitled':1A,2A
                                    'tag_tracknum'  23
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-4', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-1', 'q-other-1', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['violin', 'avant garde', 'free improvisation', 'experimental', 'improvisation']
                                        'tag_date'  1996
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1622762443.0819018  (2021-06-04 01:20:43)
                             'size'  7458541