======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '242'
                                          'artist'  'Sam Apple Pie'
                                     'text_people'  ''
                                         'release'  'Sam Apple Pie'
                                           'title'  'Something Nation'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['blues rock', 'blues', 'psychedelic rock', 'psychedelic', 'classic rock']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '06'
                                      'tracktotal'  '10'
                                            'date'  '1969'
                                        'comments'  ''
                                           'genre'  'rock-cppex-classic'
                                             'bpm'  '117.195'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Sam Apple Pie'
'TBPM' (BPM (beats per minute))                     '117.195'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-classic'
'TDRC' (Recording time)                             '1969'
'TIT2' (Title/songname/content description)         'Something Nation'
'TKEY' (Initial key)                                '10B'
'TLEN' (Length)                                     '242729'
'TMED' (Media type)                                 'DIG'
'TPE1' (Lead performer(s)/Soloist(s))               'Sam Apple Pie'
'TRCK' (Track number/Position in set)               '06/10'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['blues rock', 'blues', 'psychedelic rock', 'psychedelic', 'classic rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'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'                        '+0.68 dB'
'TXXX:replaygain_track_peak'                        '0.635027'

========================== row from database ==========================
                                              'id'  1410657
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/1969 sam apple pie/06 - something nation.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  242
                                           'genre'  rock-cppex-classic
                                        'filesize'  4948478
                                           'mtime'  1636038666
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy 1969 sam apple pie 06 something nation rock cppex classic
                                      'tag_artist'  Sam Apple Pie
                                     'tag_release'  Sam Apple Pie
                                       'tag_title'  Something Nation
                                             'bpm'  117.195
                                    'search_title'  'nation':2 'something':1
                                   'search_artist'  'apple':2 'pie':3 'sam':1
                                  'search_release'  'apple':2 'pie':3 'sam':1
                                     'search_rest'  '1969':2 'apple':4 'classic':10 'classicprogpsy':1 'cppex':9 'nation':7 'pie':5 'rock':8 'sam':3 'something':6
                                    'search_combo'  '1969':10 'apple':4B,7C,12 'classic':18 'classicprogpsy':9 'cppex':17 'nation':2A,15 'pie':5B,8C,13 'rock':16 'sam':3B,6C,11 'something':1A,14
                                    'tag_tracknum'  6
                                      'num_images'  1
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['blues rock', 'blues', 'psychedelic rock', 'psychedelic', 'classic rock']
                                        'tag_date'  1969
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1636038665.7231266  (2021-11-04 16:11:05)
                             'size'  4948478