======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '337'
                                          'artist'  'The Beatles'
                                     'text_people'  'John Lennon/Paul McCartney'
                                         'release'  'Progsoup 34'
                                           'title'  'A Day In The Life'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['pop', 'rock', '60s', 'british', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '17'
                                      'tracktotal'  '13'
                                            'date'  '1967'
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive'
                                             'bpm'  '143.213'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
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'TALB' (Album/Movie/Show title)                     'Progsoup 34'
'TBPM' (BPM (beats per minute))                     '143.213'
'TCOM' (Composer)                                   'John Lennon/Paul McCartney'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-progressive'
'TIT2' (Title/songname/content description)         'A Day In The Life'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Beatles'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '8/16'
'TPUB' (Publisher)                                  'Apple Corps'
'TRCK' (Track number/Position in set)               '17/13'
'TXXX:DATE'                                         '1967'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['pop', 'rock', '60s', 'british', 'classic rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+1.01 dB'
'TXXX:replaygain_track_peak'                        '0.597791'

========================== row from database ==========================
                                              'id'  1410816
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/PROGSOUP/progsoup 34 (sixties prog)/1973 the beatles - a day in the life.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  337
                                           'genre'  rock-cppex-progressive
                                        'filesize'  13551488
                                           'mtime'  1620737210
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy PROGSOUP progsoup (sixties prog) 1973 the beatles day in the life rock cppex progressive
                                      'tag_artist'  The Beatles
                                     'tag_release'  Progsoup 34
                                       'tag_title'  A Day In The Life
                                             'bpm'  143.213
                                    'search_title'  'a':1 'day':2 'in':3 'life':5 'the':4
                                   'search_artist'  'beatles':2 'the':1
                                  'search_release'  '34':2 'progsoup':1
                                     'search_rest'  '1973':7 'beatles':9 'classicprogpsy':1 'cppex':14 'day':10 'in':11 'life':12 'prog':5,6 'progressive':15 'progsoup':2 'rock':13 'sixties':3,4 'the':8
                                    'search_combo'  '1973':16 '34':9C 'a':1A 'beatles':7B,18 'classicprogpsy':10 'cppex':23 'day':2A,19 'in':3A,20 'life':5A,21 'prog':14,15 'progressive':24 'progsoup':8C,11 'rock':22 'sixties':12,13 'the':4A,6B,17
                                    'tag_tracknum'  17
                                      'num_images'  1
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['pop', 'rock', '60s', 'british', 'classic rock']
                                        'tag_date'  1967
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620737210.1778164  (2021-05-11 14:46:50)
                             'size'  13551488