======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '142'
                                          'artist'  'Nils Frahm & Anne Müller'
                                     'text_people'  ''
                                         'release'  '7fingers'
                                           'title'  'Aussenseiter (Bonus Track)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['piano ambient', 'contemporary classical', 'cinematic', 'neoclassical', "
 "'ambient', 'piano']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  '10'
                                            'date'  '2011'
                                        'comments'  ''
                                           'genre'  'prerock-classical or classical instruments'
                                             'bpm'  '148'
                                             'key'  '6B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     '7fingers'
'TBPM' (BPM (beats per minute))                     '148'
'TCON' (Content type, a.k.a. Genre)                 'prerock-classical or classical instruments'
'TDOR' (Original release time)                      '2010'
'TDRC' (Recording time)                             '2011'
'TIT2' (Title/songname/content description)         'Aussenseiter (Bonus Track)'
'TKEY' (Initial key)                                '6B'
'TLEN' (Length)                                     '142136'
'TMED' (Media type)                                 'Digital Media'
'TPE1' (Lead performer(s)/Soloist(s))               'Nils Frahm & Anne Müller'
'TPE2' (Band/orchestra/accompaniment)               'Nils Frahm & Anne Müller'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Erased Tapes Records'
'TRCK' (Track number/Position in set)               '10/10'
'TSO2'                                              'Frahm, Nils & Müller, Anne'
'TSOP' (Performer sort order)                       'Frahm, Nils & Müller, Anne'
'TSSE' (Software/Hardware and settings used for encoding)  'LAME 64bits version 3.98.2 (http://www.mp3dev.org/)'
'TXXX:Artists'                                      'Nils Frahm/Anne Müller'
'TXXX:CATALOGNUMBER'                                'ERATP028DL'
'TXXX:MusicBrainz Album Artist Id'                  'd03a54bc-6e07-4c04-a8d4-7fbf2bd07a01/4b20e591-d043-4c0a-bea2-a11eda6d7f73'
'TXXX:MusicBrainz Album Id'                         '212049a4-ae6a-40b8-a516-5ad7a12e1c4d'
'TXXX:MusicBrainz Album Release Country'            'XW'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'd03a54bc-6e07-4c04-a8d4-7fbf2bd07a01/4b20e591-d043-4c0a-bea2-a11eda6d7f73'
'TXXX:MusicBrainz Release Group Id'                 '87eb15c6-eabd-4b1c-b725-b7bd733017c1'
'TXXX:MusicBrainz Release Track Id'                 '125b1a32-06ee-490c-8ee2-f8bc76598ff8'
'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:lastfmtags'                                   ['piano ambient',
 'contemporary classical',
 'cinematic',
 'neoclassical',
 'ambient',
 'piano']
'TXXX:originalyear'                                 '2010'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.00 dB'
'TXXX:replaygain_track_peak'                        '0.486079'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'9d7f8fb6-528e-46e0-8ba1-793a7788e074')

========================== row from database ==========================
                                              'id'  183470
                                            'path'  /data/Music/Bulk/00instruments-classical/Nils Frahm/2010 - 7Fingers (& Anne Müller)/10 - Aussenseiter (Bonus Track).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  142
                                           'genre'  prerock-classical or classical instruments
                                        'filesize'  5697542
                                           'mtime'  1620561697
                                   'redo_metaread'  0
                                        'rest_str'   00instruments classical 2010 7Fingers (& Müller) 10 prerock classical or classical instruments
                                      'tag_artist'  Nils Frahm & Anne Müller
                                     'tag_release'  7fingers
                                       'tag_title'  Aussenseiter (Bonus Track)
                                             'bpm'  148.0
                                    'search_title'  'aussenseiter':1 'bonus':2,3 'track':4,5
                                   'search_artist'  'anne':3 'frahm':2 'muller':4,5 'nils':1
                                  'search_release'  '7fingers':1
                                     'search_rest'  '00instruments':1 '2010':3 '7fingers':4 'classical':2 'instruments':11 'muller':5,6,7,8 'or':10 'prerock':9
                                    'search_combo'  '00instruments':12 '2010':14 '7fingers':11C,15 'anne':8B 'aussenseiter':1A 'bonus':2A,3A 'classical':13 'frahm':7B 'instruments':22 'muller':9B,10B,16,17,18,19 'nils':6B 'or':21 'prerock':20 'track':4A,5A
                                    'tag_tracknum'  10
                                      'num_images'  0
                                             'key'  6B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['piano ambient', 'contemporary classical', 'cinematic', 'neoclassical', 'ambient', 'piano']
                                        'tag_date'  2011
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620561696.6004322  (2021-05-09 14:01:36)
                             'size'  5697542