======================== unified (from filesystem) ========================
                                         'bitrate'  '201.961'
                                        'duration'  '237'
                                          'artist'  'Country Joe And The Fish'
                                     'text_people'  ''
                                         'release'  "I-Feel-Like-I'm-Fixin'-To-Die"
                                           'title'  'Rock Coast Blues'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['psychedelic rock', 'psychedelic', '60s', 'classic rock', 'rock']"
                                     'discogstags'  "['rock', 'blues', 'blues rock', 'psychedelic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '04'
                                      'tracktotal'  '10'
                                            'date'  '1967'
                                        'comments'  ''
                                           'genre'  'rock-cppex-psychedelic'
                                             'bpm'  '121.264'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     "I-Feel-Like-I'm-Fixin'-To-Die"
'TBPM' (BPM (beats per minute))                     '121.264'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-psychedelic'
'TDRC' (Recording time)                             '1967'
'TENC' (Encoded by)                                 'Exact Audio Copy   (Secure mode)'
'TIT2' (Title/songname/content description)         'Rock Coast Blues'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Country Joe And The Fish'
'TRCK' (Track number/Position in set)               '04/10'
'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', 'blues', 'blues rock', 'psychedelic rock']
'TXXX:lastfmtags'                                   ['psychedelic rock', 'psychedelic', '60s', 'classic rock', 'rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '+2.03 dB'
'TXXX:replaygain_track_peak'                        '0.482953'

========================== row from database ==========================
                                              'id'  1409639
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/COUNTRY JOE & THE FISH - Country Joe and the Fish/Country Joe And The Fish-I Feel Like I m Fixin To Die(Darkside_RG)/04 - Rock Coast Blues.mp3
                                         'working'  None
                                         'bitrate'  202
                                    'duration_sec'  237
                                           'genre'  rock-cppex-psychedelic
                                        'filesize'  6002595
                                           'mtime'  1620736117
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy COUNTRY JOE & THE FISH and the Die(Darkside_RG) 04 rock cppex psychedelic
                                      'tag_artist'  Country Joe And The Fish
                                     'tag_release'  I-Feel-Like-I'm-Fixin'-To-Die
                                       'tag_title'  Rock Coast Blues
                                             'bpm'  121.264
                                    'search_title'  'blues':3 'coast':2 'rock':1
                                   'search_artist'  'and':3 'country':1 'fish':5 'joe':2 'the':4
                                  'search_release'  'die':8 'feel':2 'fixin':6 'i':1,4 'ifeellikeimfixintodie':9 'like':3 'm':5 'to':7
                                     'search_rest'  'and':6 'classicprogpsy':1 'country':2 'cppex':13 'darkside':8 'die':7 'diedarkside':10 'fish':5 'joe':3 'psychedelic':14 'rg':9,11 'rock':12 'the':4
                                    'search_combo'  'and':6B,23 'blues':3A 'classicprogpsy':18 'coast':2A 'country':4B,19 'cppex':30 'darkside':25 'die':16C,24 'diedarkside':27 'feel':10C 'fish':8B,22 'fixin':14C 'i':9C,12C 'ifeellikeimfixintodie':17C 'joe':5B,20 'like':11C 'm':13C 'psychedelic':31 'rg':26,28 'rock':1A,29 'the':7B,21 'to':15C
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  10A
                                           '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-4', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['psychedelic rock', 'psychedelic', '60s', 'classic rock', 'rock']
                                        'tag_date'  1967
                                     'discogstags'  ['rock', 'blues', 'blues rock', 'psychedelic rock']

============================== file details ==============================
                                           'mtime'  1620736116.718916  (2021-05-11 14:28:36)
                             'size'  6002595