======================== unified (from filesystem) ========================
                                         'bitrate'  '319.725'
                                        'duration'  '153'
                                          'artist'  'Johnny Tillotson'
                                     'text_people'  ''
                                         'release'  '25 All-Time Greatest Hits'
                                           'title'  'True True Happiness'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-2', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['oldies', '60s', 'rock n roll', 'pop', 'rock and roll']"
                                     'discogstags'  "['country rock', 'rock', 'folk, world, & country']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '02'
                                      'tracktotal'  '25'
                                            'date'  '1959'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '98.983'
                                             'key'  '6B'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         '59-322 POS 54'
'COMM:ID3v1 Comment:XXX'                            '59-322 POS 54'
'TALB' (Album/Movie/Show title)                     '25 All-Time Greatest Hits'
'TBPM' (BPM (beats per minute))                     '98.983'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1959'
'TENC' (Encoded by)                                 'Exact Audio Copy   (Secure mode)'
'TIT2' (Title/songname/content description)         'True True Happiness'
'TKEY' (Initial key)                                '6B'
'TPE1' (Lead performer(s)/Soloist(s))               'Johnny Tillotson'
'TRCK' (Track number/Position in set)               '02/25'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['country rock', 'rock', 'folk, world, & country']
'TXXX:lastfmtags'                                   ['oldies', '60s', 'rock n roll', 'pop', 'rock and roll']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+10.27 dB'
'TXXX:replaygain_track_peak'                        '0.149332'

========================== row from database ==========================
                                              'id'  1449318
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1959/59-322 - Johnny Tillotson - True True Happiness.mp3
                                         'working'  None
                                         'bitrate'  319
                                    'duration_sec'  153
                                           'genre'  prerock-unsorted
                                        'filesize'  6130513
                                           'mtime'  1621698416
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1959 59 322 prerock unsorted
                                      'tag_artist'  Johnny Tillotson
                                     'tag_release'  25 All-Time Greatest Hits
                                       'tag_title'  True True Happiness
                                             'bpm'  98.983
                                    'search_title'  'happiness':2 'true':1
                                   'search_artist'  'johnny':1 'tillotson':2
                                  'search_release'  '25':1 'all':2 'alltime':4 'greatest':5 'hits':6 'time':3
                                     'search_rest'  '00oldiepop':5 '1959':6 '322':8 '59':7 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':9 'unsorted':10
                                    'search_combo'  '00oldiepop':15 '1959':16 '25':5C '322':18 '59':17 'all':6C 'alltime':8C 'country':14 'exotica':12 'greatest':9C 'happiness':2A 'hits':10C 'jazz':11 'johnny':3B 'oldies':13 'prerock':19 'tillotson':4B 'time':7C 'true':1A 'unsorted':20
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  6B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  ['oldies', '60s', 'rock n roll', 'pop', 'rock and roll']
                                        'tag_date'  1959
                                     'discogstags'  ['country rock', 'rock', 'folk, world, & country']

============================== file details ==============================
                                           'mtime'  1621698416.17432  (2021-05-22 17:46:56)
                             'size'  6130513