======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '340'
                                          'artist'  'Shylock (D)'
                                     'text_people'  ''
                                         'release'  'Progsoup 48'
                                           'title'  'Another Lonely Night'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'Q-PLAY-3', 'q-bass-2', 'q-busy-3', 'q-grit-2', "
 "'Q-PIANO-2', 'q-chart-2', 'q-drums-2', 'q-other-3', 'q-vocals-3', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '61'
                                      'tracktotal'  ''
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive'
                                             'bpm'  '143.823'
                                             'key'  '2B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Progsoup 48'
'TBPM' (BPM (beats per minute))                     '143.823'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-progressive'
'TDRC' (Recording time)                             '2001'
'TIT2' (Title/songname/content description)         'Another Lonely Night'
'TKEY' (Initial key)                                '2B'
'TPE1' (Lead performer(s)/Soloist(s))               'Shylock (D)'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '61'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.98 dB'
'TXXX:replaygain_track_peak'                        '0.415501'

========================== row from database ==========================
                                              'id'  1412502
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/PROGSOUP/progsoup 48/2764 shylock - another lonely night.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  340
                                           'genre'  rock-cppex-progressive
                                        'filesize'  6813013
                                           'mtime'  1620737508
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy PROGSOUP progsoup 2764 shylock another lonely night rock cppex progressive
                                      'tag_artist'  Shylock (D)
                                     'tag_release'  Progsoup 48
                                       'tag_title'  Another Lonely Night
                                             'bpm'  143.823
                                    'search_title'  'another':1 'lonely':2 'night':3
                                   'search_artist'  'd':2,3 'shylock':1
                                  'search_release'  '48':2 'progsoup':1
                                     'search_rest'  '2764':3 'another':5 'classicprogpsy':1 'cppex':9 'lonely':6 'night':7 'progressive':10 'progsoup':2 'rock':8 'shylock':4
                                    'search_combo'  '2764':11 '48':8C 'another':1A,13 'classicprogpsy':9 'cppex':17 'd':5B,6B 'lonely':2A,14 'night':3A,15 'progressive':18 'progsoup':7C,10 'rock':16 'shylock':4B,12
                                    'tag_tracknum'  61
                                      'num_images'  0
                                             'key'  2B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-2', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'Q-PLAY-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  2001
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620737508.4555404  (2021-05-11 14:51:48)
                             'size'  6813013