======================== unified (from filesystem) ========================
                                         'bitrate'  '221.499'
                                        'duration'  '491'
                                          'artist'  'Transatlantic'
                                     'text_people'  ''
                                         'release'  'Progsoup 23'
                                           'title'  'Is It Really Happening'
                                           '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-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['supergroup', 'progressive rock', 'progressive metal', 'progressive', 'rock']"
                                     'discogstags'  "['house', 'electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '22'
                                      'tracktotal'  ''
                                            'date'  '1975'
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive;set-pl-progspace'
                                             'bpm'  '145.267'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Progsoup 23'
'TBPM' (BPM (beats per minute))                     '145.267'
'TCON' (Content type, a.k.a. Genre)                 ['rock-cppex-progressive', 'set-pl-progspace', 'set-pl-progspace']
'TDRC' (Recording time)                             '1975'
'TIT2' (Title/songname/content description)         'Is It Really Happening'
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'Transatlantic'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '22'
'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'                                  ['house', 'electronic']
'TXXX:lastfmtags'                                   ['supergroup', 'progressive rock', 'progressive metal', 'progressive', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'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'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.30 dB'
'TXXX:replaygain_track_peak'                        '0.458012'

========================== row from database ==========================
                                              'id'  1411421
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/PROGSOUP/progsoup 23/1304 transatlantic - is  it really happening.mp3
                                         'working'  None
                                         'bitrate'  221
                                    'duration_sec'  491
                                           'genre'  rock-cppex-progressive;set-pl-progspace
                                        'filesize'  13608059
                                           'mtime'  1620736904
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy PROGSOUP progsoup 1304 transatlantic is it really happening rock cppex progressive;set pl progspace
                                      'tag_artist'  Transatlantic
                                     'tag_release'  Progsoup 23
                                       'tag_title'  Is It Really Happening
                                             'bpm'  145.267
                                    'search_title'  'happening':4 'is':1 'it':2 'really':3
                                   'search_artist'  'transatlantic':1
                                  'search_release'  '23':2 'progsoup':1
                                     'search_rest'  '1304':3 'classicprogpsy':1 'cppex':10 'happening':8 'is':5 'it':6 'pl':15 'progressive':11,13 'progsoup':2 'progspace':16 'really':7 'rock':9 'set':12,14 'transatlantic':4
                                    'search_combo'  '1304':10 '23':7C 'classicprogpsy':8 'cppex':17 'happening':4A,15 'is':1A,12 'it':2A,13 'pl':22 'progressive':18,20 'progsoup':6C,9 'progspace':23 'really':3A,14 'rock':16 'set':19,21 'transatlantic':5B,11
                                    'tag_tracknum'  22
                                      'num_images'  0
                                             'key'  12B
                                           '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-4', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['supergroup', 'progressive rock', 'progressive metal', 'progressive', 'rock']
                                        'tag_date'  1975
                                     'discogstags'  ['house', 'electronic']

============================== file details ==============================
                                           'mtime'  1620736903.5920987  (2021-05-11 14:41:43)
                             'size'  13608059