======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '306'
                                          'artist'  'david crosby'
                                     'text_people'  'David Crosby'
                                         'release'  'progsoup 58'
                                           'title'  ' Find a Heart'
                                           '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-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['folk rock', 'singer-songwriter', 'classic rock', 'folk', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '20'
                                      'tracktotal'  ''
                                            'date'  '2014'
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive'
                                             'bpm'  '112.696'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'progsoup 58'
'TBPM' (BPM (beats per minute))                     '112.696'
'TCOM' (Composer)                                   'David Crosby'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-progressive'
'TDRC' (Recording time)                             '2014'
'TIT2' (Title/songname/content description)         ' Find a Heart'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'david crosby'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '20'
'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:lastfmtags'                                   ['folk rock', 'singer-songwriter', 'classic rock', 'folk', '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'                                      '2'
'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'                        '0.610549'

========================== row from database ==========================
                                              'id'  1409874
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/PROGSOUP/progsoup 58/3247 david crosby - Find a Heart.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  306
                                           'genre'  rock-cppex-progressive
                                        'filesize'  12296107
                                           'mtime'  1620737599
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy PROGSOUP 3247 rock cppex progressive
                                      'tag_artist'  david crosby
                                     'tag_release'  progsoup 58
                                       'tag_title'   Find a Heart
                                             'bpm'  112.696
                                    'search_title'  'a':2 'find':1 'heart':3
                                   'search_artist'  'crosby':2 'david':1
                                  'search_release'  '58':2 'progsoup':1
                                     'search_rest'  '3247':3 'classicprogpsy':1 'cppex':5 'progressive':6 'progsoup':2 'rock':4
                                    'search_combo'  '3247':10 '58':7C 'a':2A 'classicprogpsy':8 'cppex':12 'crosby':5B 'david':4B 'find':1A 'heart':3A 'progressive':13 'progsoup':6C,9 'rock':11
                                    'tag_tracknum'  20
                                      'num_images'  1
                                             'key'  9B
                                           '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-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['folk rock', 'singer-songwriter', 'classic rock', 'folk', 'rock']
                                        'tag_date'  2014
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620737599.0296426  (2021-05-11 14:53:19)
                             'size'  12296107