======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '467'
                                          'artist'  'National Health'
                                     'text_people'  ''
                                         'release'  'Progsoup 38'
                                           'title'  'Zabaglione'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['rock', 'jazz rock', 'progressive rock', 'canterbury', 'canterbury scene']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '56'
                                      'tracktotal'  ''
                                            'date'  '1975'
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive;set-pl-progspace'
                                             'bpm'  '145.580'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Progsoup 38'
'TBPM' (BPM (beats per minute))                     '145.580'
'TCON' (Content type, a.k.a. Genre)                 ['rock-cppex-progressive', 'set-pl-progspace']
'TDRC' (Recording time)                             '1975'
'TIT2' (Title/songname/content description)         'Zabaglione'
'TKEY' (Initial key)                                '11A'
'TPE1' (Lead performer(s)/Soloist(s))               'National Health'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '56'
'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'                                   ['rock', 'jazz rock', 'progressive rock', 'canterbury', 'canterbury scene']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.67 dB'
'TXXX:replaygain_track_peak'                        '1.025111'
'TXXX:tracknum'                                     '2234'

========================== row from database ==========================
                                              'id'  1412167
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/PROGSOUP/progsoup 38 (fusionsoup)/2234 National Health - Zabaglione.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  467
                                           'genre'  rock-cppex-progressive;set-pl-progspace
                                        'filesize'  7489920
                                           'mtime'  1620737317
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy PROGSOUP progsoup (fusionsoup) 2234 rock cppex progressive;set pl progspace
                                      'tag_artist'  National Health
                                     'tag_release'  Progsoup 38
                                       'tag_title'  Zabaglione
                                             'bpm'  145.58
                                    'search_title'  'zabaglione':1
                                   'search_artist'  'health':2 'national':1
                                  'search_release'  '38':2 'progsoup':1
                                     'search_rest'  '2234':5 'classicprogpsy':1 'cppex':7 'fusionsoup':3,4 'pl':12 'progressive':8,10 'progsoup':2 'progspace':13 'rock':6 'set':9,11
                                    'search_combo'  '2234':10 '38':5C 'classicprogpsy':6 'cppex':12 'fusionsoup':8,9 'health':3B 'national':2B 'pl':17 'progressive':13,15 'progsoup':4C,7 'progspace':18 'rock':11 'set':14,16 'zabaglione':1A
                                    'tag_tracknum'  56
                                      'num_images'  0
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', '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-4', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['rock', 'jazz rock', 'progressive rock', 'canterbury', 'canterbury scene']
                                        'tag_date'  1975
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620737317.4521542  (2021-05-11 14:48:37)
                             'size'  7489920