======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '349'
                                          'artist'  'Big Big Train'
                                     'text_people'  ''
                                         'release'  'Progsoup 35'
                                           'title'  'Head Hit The Pillow'
                                           '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-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['art rock', 'progressive rock', 'progressive', 'british', 'rock']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '76'
                                      'tracktotal'  ''
                                            'date'  '1975'
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive;set-pl-progspace'
                                             'bpm'  '132.617'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Progsoup 35'
'TBPM' (BPM (beats per minute))                     '132.617'
'TCON' (Content type, a.k.a. Genre)                 ['rock-cppex-progressive', 'set-pl-progspace']
'TDRC' (Recording time)                             '1975'
'TIT2' (Title/songname/content description)         'Head Hit The Pillow'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Big Big Train'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '76'
'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:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['art rock', 'progressive rock', 'progressive', 'british', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.47 dB'
'TXXX:replaygain_track_peak'                        '0.437292'

========================== row from database ==========================
                                              'id'  1416621
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/PROGSOUP/progsoup 36/2095 big big train - head hit the pillow.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  349
                                           'genre'  rock-cppex-progressive;set-pl-progspace
                                        'filesize'  13986044
                                           'mtime'  1620737262
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy PROGSOUP progsoup 36 2095 big big train head hit the pillow rock cppex progressive;set pl progspace
                                      'tag_artist'  Big Big Train
                                     'tag_release'  Progsoup 35
                                       'tag_title'  Head Hit The Pillow
                                             'bpm'  132.617
                                    'search_title'  'head':1 'hit':2 'pillow':4 'the':3
                                   'search_artist'  'big':1 'train':2
                                  'search_release'  '35':2 'progsoup':1
                                     'search_rest'  '2095':4 '36':3 'big':5 'classicprogpsy':1 'cppex':12 'head':7 'hit':8 'pillow':10 'pl':17 'progressive':13,15 'progsoup':2 'progspace':18 'rock':11 'set':14,16 'the':9 'train':6
                                    'search_combo'  '2095':12 '35':8C '36':11 'big':5B,13 'classicprogpsy':9 'cppex':20 'head':1A,15 'hit':2A,16 'pillow':4A,18 'pl':25 'progressive':21,23 'progsoup':7C,10 'progspace':26 'rock':19 'set':22,24 'the':3A,17 'train':6B,14
                                    'tag_tracknum'  76
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['art rock', 'progressive rock', 'progressive', 'british', 'rock']
                                        'tag_date'  1975
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620737262.498033  (2021-05-11 14:47:42)
                             'size'  13986044