======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '289'
                                          'artist'  'Nils Frahm'
                                     'text_people'  ''
                                         'release'  'Streichelfisch'
                                           'title'  '7x1/8'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-2', 'q-bass-4', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-3', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['contemporary classical', 'instrumental', 'piano', 'modern classical', "
 "'ambient']")
                                     'discogstags'  "['electronic', 'leftfield', 'glitch', 'abstract', 'future jazz']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  '9'
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'prerock-classical or classical instruments'
                                             'bpm'  '121.9'
                                             'key'  '5A'
                                        'acoustid'  '4d667f67-6a29-4182-9010-ffa81ee57d59'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Streichelfisch'
'TBPM' (BPM (beats per minute))                     '121.9'
'TCON' (Content type, a.k.a. Genre)                 'prerock-classical or classical instruments'
'TDOR' (Original release time)                      '2005'
'TDRC' (Recording time)                             '2005-12-01'
'TIT2' (Title/songname/content description)         '7x1/8'
'TKEY' (Initial key)                                '5A'
'TMED' (Media type)                                 '12" Vinyl'
'TPE1' (Lead performer(s)/Soloist(s))               'Nils Frahm'
'TPE2' (Band/orchestra/accompaniment)               'Nils Frahm'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'AtelierMusik'
'TRCK' (Track number/Position in set)               '7/9'
'TSO2'                                              'Frahm, Nils'
'TSOP' (Performer sort order)                       'Frahm, Nils'
'TXXX:Acoustid Id'                                  '4d667f67-6a29-4182-9010-ffa81ee57d59'
'TXXX:Artists'                                      'Nils Frahm'
'TXXX:CATALOGNUMBER'                                'AM001'
'TXXX:MusicBrainz Album Artist Id'                  'd03a54bc-6e07-4c04-a8d4-7fbf2bd07a01'
'TXXX:MusicBrainz Album Id'                         'd5bd5f48-4766-4ad3-a2cf-5992002a5ea6'
'TXXX:MusicBrainz Album Release Country'            'DE'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'd03a54bc-6e07-4c04-a8d4-7fbf2bd07a01'
'TXXX:MusicBrainz Release Group Id'                 '5425e400-91e6-4155-9c02-557b1e928f55'
'TXXX:MusicBrainz Release Track Id'                 '2cf6e3c2-78be-34e6-bbe9-2412dffc526d'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['electronic', 'leftfield', 'glitch', 'abstract', 'future jazz']
'TXXX:lastfmtags'                                   ['contemporary classical',
 'instrumental',
 'piano',
 'modern classical',
 'ambient']
'TXXX:originalyear'                                 '2005'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.27 dB'
'TXXX:replaygain_track_peak'                        '0.712854'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'c1a2e351-4178-4fb0-8df0-6cf5ed6f1690')

========================== row from database ==========================
                                              'id'  174844
                                            'path'  /data/Music/Bulk/00instruments-classical/Nils Frahm/2005 - Streichelfisch/07 - 7x1,8.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  289
                                           'genre'  prerock-classical or classical instruments
                                        'filesize'  11660067
                                           'mtime'  1620561673
                                   'redo_metaread'  0
                                        'rest_str'   00instruments classical 2005 07 7x1,8 prerock classical or classical instruments
                                      'tag_artist'  Nils Frahm
                                     'tag_release'  Streichelfisch
                                       'tag_title'  7x1/8
                                             'bpm'  121.9
                                    'search_title'  '7x1':1 '7x18':3 '8':2
                                   'search_artist'  'frahm':2 'nils':1
                                  'search_release'  'streichelfisch':1
                                     'search_rest'  '00instruments':1 '2005':3 '7x1':4,6 '8':5,7 'classical':2 'instruments':10 'or':9 'prerock':8
                                    'search_combo'  '00instruments':7 '2005':9 '7x1':1A,10,12 '7x18':3A '8':2A,11,13 'classical':8 'frahm':5B 'instruments':16 'nils':4B 'or':15 'prerock':14 'streichelfisch':6C
                                    'tag_tracknum'  7
                                      'num_images'  1
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['contemporary classical', 'instrumental', 'piano', 'modern classical', 'ambient']
                                        'tag_date'  2005
                                     'discogstags'  ['electronic', 'leftfield', 'glitch', 'abstract', 'future jazz']

============================== file details ==============================
                                           'mtime'  1620561673.357706  (2021-05-09 14:01:13)
                             'size'  11660067