======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '219'
                                          'artist'  'Erik Satie'
                                     'text_people'  'Jean-Yves Thibaudet'
                                         'release'  'Shirley & Spinoza'
                                           'title'  'Trois Gymnopidies: Gymnopidie No. 1 (1888)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-2', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'q-syn-2', 'Q-PLAY-3', 'q-bass-1', 'q-busy-3', 'q-grit-2', "
 "'Q-PIANO-4', 'q-chart-1', 'q-drums-1', 'q-other-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['impressionist', 'composers', 'piano', 'french', 'classical']"
                                     'discogstags'  "['classical']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '04'
                                      'tracktotal'  '22'
                                            'date'  '2003'
                                        'comments'  ''
                                           'genre'  'set-pl-shirleyspinoza;set-pl-mor'
                                             'bpm'  '85.381'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Shirley & Spinoza'
'TBPM' (BPM (beats per minute))                     '85.381'
'TCOM' (Composer)                                   'Erik Satie (1866–1925)'
'TCON' (Content type, a.k.a. Genre)                 ['set-pl-shirleyspinoza', 'set-pl-mor']
'TDRC' (Recording time)                             '2003'
'TIT2' (Title/songname/content description)         'Trois Gymnopidies: Gymnopidie No. 1 (1888)'
'TKEY' (Initial key)                                '10B'
'TOPE' (Original artist(s)/performer(s))            'Jean-Yves Thibaudet'
'TPE1' (Lead performer(s)/Soloist(s))               'Erik Satie'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/5'
'TRCK' (Track number/Position in set)               '04/22'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PIANO'                                      '4'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'classical'
'TXXX:lastfmtags'                                   ['impressionist', 'composers', 'piano', 'french', 'classical']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+3.64 dB'
'TXXX:replaygain_track_peak'                        '0.974671'

========================== row from database ==========================
                                              'id'  949413
                                            'path'  /data/Music/Bulk/sns/Erik Satie - Trois Gymnopédies - Gymnopédie No. 1 (1888).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  219
                                           'genre'  set-pl-shirleyspinoza;set-pl-mor
                                        'filesize'  8806615
                                           'mtime'  1621630395
                                   'redo_metaread'  0
                                        'rest_str'   sns Gymnopédies Gymnopédie set pl shirleyspinoza;set pl mor
                                      'tag_artist'  Erik Satie
                                     'tag_release'  Shirley & Spinoza
                                       'tag_title'  Trois Gymnopidies: Gymnopidie No. 1 (1888)
                                             'bpm'  85.381
                                    'search_title'  '1':7 '1888':8,9 'gymnopidie':4 'gymnopidies':2,3 'no':5,6 'trois':1
                                   'search_artist'  'erik':1 'satie':2
                                  'search_release'  'shirley':1 'spinoza':2
                                     'search_rest'  'gymnopedie':4,5 'gymnopedies':2,3 'mor':12 'pl':7 'set':6,9,11 'shirleyspinoza':8,10 'sns':1
                                    'search_combo'  '1':7A '1888':8A,9A 'erik':10B 'gymnopedie':17,18 'gymnopedies':15,16 'gymnopidie':4A 'gymnopidies':2A,3A 'mor':25 'no':5A,6A 'pl':20 'satie':11B 'set':19,22,24 'shirley':12C 'shirleyspinoza':21,23 'sns':14 'spinoza':13C 'trois':1A
                                    'tag_tracknum'  4
                                      'num_images'  1
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-3', 'q-mixbeat-1', 'Q-PIANO-4', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-1', 'q-other-1', 'Q-HAP-3', 'Q-PLAY-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['impressionist', 'composers', 'piano', 'french', 'classical']
                                        'tag_date'  2003
                                     'discogstags'  ['classical']

============================== file details ==============================
                                           'mtime'  1621630395.0742078  (2021-05-21 22:53:15)
                             'size'  8806615