======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '169'
                                          'artist'  'Johnny Marvin'
                                     'text_people'  ''
                                         'release'  'collection'
                                           'title'  "If You Don't Love Me"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['all', 'jazz', 'ragtime', '20s', 'swing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '1930'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-lounge or exotica or bossa'
                                             'bpm'  '85.345'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'COMM::\x00\x00\x00'                                '8/8/28\r\no/Leonard Joy'
'COMM:ID3v1 Comment:XXX'                            '8/8/28\r\no/Leonard Joy'
'TALB' (Album/Movie/Show title)                     'collection'
'TBPM' (BPM (beats per minute))                     '85.345'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-lounge or exotica or bossa'
'TDRC' (Recording time)                             '1930'
'TIT2' (Title/songname/content description)         "If You Don't Love Me"
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Johnny Marvin'
'TRCK' (Track number/Position in set)               '3'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['all', 'jazz', 'ragtime', '20s', 'swing']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.30 dB'
'TXXX:replaygain_track_peak'                        '0.548003'

========================== row from database ==========================
                                              'id'  1514422
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Johnny Marvin - collection/Johnny Marvin - If You Don_t Love Me.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  169
                                           'genre'  prerock-jb-jazz-lounge or exotica or bossa
                                        'filesize'  2719619
                                           'mtime'  1620530516
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Don_t prerock jb jazz lounge or exotica or bossa
                                      'tag_artist'  Johnny Marvin
                                     'tag_release'  collection
                                       'tag_title'  If You Don't Love Me
                                             'bpm'  85.345
                                    'search_title'  'don':3 'dont':5 'if':1 'love':6 'me':7 't':4 'you':2
                                   'search_artist'  'johnny':1 'marvin':2
                                  'search_release'  'collection':1
                                     'search_rest'  'bossa':11 'country':4 'don':5 'exotica':2 'jazz':1 'jb':8 'lounge':9 'oldies':3 'or':10 'prerock':7 't':6
                                    'search_combo'  'bossa':21 'collection':10C 'country':14 'don':3A,15 'dont':5A 'exotica':12 'if':1A 'jazz':11 'jb':18 'johnny':8B 'lounge':19 'love':6A 'marvin':9B 'me':7A 'oldies':13 'or':20 'prerock':17 't':4A,16 'you':2A
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['all', 'jazz', 'ragtime', '20s', 'swing']
                                        'tag_date'  1930
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620530516.3248622  (2021-05-09 05:21:56)
                             'size'  2719619