======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '962'
                                          'artist'  'Greg Haines & Mariska Baars & Sytze Pruiksma'
                                     'text_people'  ''
                                         'release'  'Seeljocht'
                                           'title'  'You Know How'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-3', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'Q-PIANO-3', 'q-chart-3', 'q-drums-2', 'q-other-3', 'q-vocals-2', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '2011'
                                        'comments'  ''
                                           'genre'  'prerock-classical or classical instruments'
                                             'bpm'  '137.292'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Seeljocht'
'TBPM' (BPM (beats per minute))                     '137.292'
'TCON' (Content type, a.k.a. Genre)                 'prerock-classical or classical instruments'
'TDRC' (Recording time)                             '2011'
'TIT2' (Title/songname/content description)         'You Know How'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'Greg Haines & Mariska Baars & Sytze Pruiksma'
'TRCK' (Track number/Position in set)               '1'
'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:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.82 dB'
'TXXX:replaygain_track_peak'                        '0.841108'

========================== row from database ==========================
                                              'id'  181255
                                            'path'  /data/Music/Bulk/00instruments-classical/Nils Frahm/2011 - Seeljocht (& Greg Haines, Piiptsjilling, Heather Broderick)/01 - You Know How.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  962
                                           'genre'  prerock-classical or classical instruments
                                        'filesize'  38489219
                                           'mtime'  1620561703
                                   'redo_metaread'  0
                                        'rest_str'   00instruments classical Nils Frahm 2011 (& Haines, Piiptsjilling, Heather Broderick) 01 prerock classical or classical instruments
                                      'tag_artist'  Greg Haines & Mariska Baars & Sytze Pruiksma
                                     'tag_release'  Seeljocht
                                       'tag_title'  You Know How
                                             'bpm'  137.292
                                    'search_title'  'how':3 'know':2 'you':1
                                   'search_artist'  'baars':4 'greg':1 'haines':2 'mariska':3 'pruiksma':6 'sytze':5
                                  'search_release'  'seeljocht':1
                                     'search_rest'  '00instruments':1 '2011':5 'broderick':11,12 'classical':2 'frahm':4 'haines':6,7 'heather':10 'instruments':15 'nils':3 'or':14 'piiptsjilling':8,9 'prerock':13
                                    'search_combo'  '00instruments':11 '2011':15 'baars':7B 'broderick':21,22 'classical':12 'frahm':14 'greg':4B 'haines':5B,16,17 'heather':20 'how':3A 'instruments':25 'know':2A 'mariska':6B 'nils':13 'or':24 'piiptsjilling':18,19 'prerock':23 'pruiksma':9B 'seeljocht':10C 'sytze':8B 'you':1A
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-3', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-2', 'q-syn-1', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  2011
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620561702.937976  (2021-05-09 14:01:42)
                             'size'  38489219