======================== unified (from filesystem) ========================
                                         'bitrate'  '198.379'
                                        'duration'  '282'
                                          'artist'  'Carolina Chocolate Drops'
                                     'text_people'  ''
                                         'release'  '2009-01-23 WorkPlay Theater'
                                           'title'  "Snowden's Jig"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-OLDST-1', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['country', 'old time', 'bluegrass', 'alt country', 'folk']"
                                     'discogstags'  "['blues', 'folk, world, & country']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-namerica-country-folk'
                                             'bpm'  '86.2'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     '2009-01-23 WorkPlay Theater'
'TBPM' (BPM (beats per minute))                     '86.2'
'TCON' (Content type, a.k.a. Genre)                 'loc-namerica-country-folk'
'TIT2' (Title/songname/content description)         "Snowden's Jig"
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Carolina Chocolate Drops'
'TRCK' (Track number/Position in set)               '10'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['blues', 'folk, world, & country']
'TXXX:lastfmtags'                                   ['country', 'old time', 'bluegrass', 'alt country', 'folk']
'TXXX:q-bass'                                       '1'
'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'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+2.60 dB'
'TXXX:replaygain_track_peak'                        '0.718927'

========================== row from database ==========================
                                              'id'  1499276
                                            'path'  /data/Music/Bulk/00localcharacter/Carolina Chocolate Drops -2009-01-23 WorkPlay Theater/10 Snowden_s Jig.mp3
                                         'working'  None
                                         'bitrate'  198
                                    'duration_sec'  282
                                           'genre'  loc-namerica-country-folk
                                        'filesize'  7582229
                                           'mtime'  1621629683
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 10 Snowden_s loc namerica country folk
                                      'tag_artist'  Carolina Chocolate Drops
                                     'tag_release'  2009-01-23 WorkPlay Theater
                                       'tag_title'  Snowden's Jig
                                             'bpm'  86.2
                                    'search_title'  'jig':4 's':2 'snowden':1 'snowdens':3
                                   'search_artist'  'carolina':1 'chocolate':2 'drops':3
                                  'search_release'  '01':2 '2009':1 '20090123':4 '23':3 'play':8 'theater':6 'work':7 'workplay':5
                                     'search_rest'  'country':5 'folk':6 'loc':3 'namerica':4 's':2 'snowden':1
                                    'search_combo'  '01':9C '2009':8C '20090123':11C '23':10C 'carolina':5B 'chocolate':6B 'country':20 'drops':7B 'folk':21 'jig':4A 'loc':18 'namerica':19 'play':15C 's':2A,17 'snowden':1A,16 'snowdens':3A 'theater':13C 'work':14C 'workplay':12C
                                    'tag_tracknum'  10
                                      'num_images'  1
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['country', 'old time', 'bluegrass', 'alt country', 'folk']
                                        'tag_date'  
                                     'discogstags'  ['blues', 'folk, world, & country']

============================== file details ==============================
                                           'mtime'  1621629682.675809  (2021-05-21 22:41:22)
                             'size'  7582229