======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '175'
                                          'artist'  'Steve Porter'
                                     'text_people'  ''
                                         'release'  'Victor 16936'
                                           'title'  "Clancey's Wooden Wedding"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', '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'  "['dance', 'house', 'trance', 'progressive house', 'electro', 'electronic']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1911'
                                        'comments'  ''
                                           'genre'  'prerock-vocal'
                                             'bpm'  '86.401'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Victor 16936'
'TBPM' (BPM (beats per minute))                     '86.401'
'TCON' (Content type, a.k.a. Genre)                 'prerock-vocal'
'TDRC' (Recording time)                             '1911'
'TIT2' (Title/songname/content description)         "Clancey's Wooden Wedding"
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Steve Porter'
'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'                                  'electronic'
'TXXX:lastfmtags'                                   ['dance', 'house', 'trance', 'progressive house', 'electro', 'electronic']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'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'                        '+2.95 dB'
'TXXX:replaygain_track_peak'                        '0.562069'

========================== row from database ==========================
                                              'id'  1520012
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1911/Steve Porter - Clancey_s Wooden Wedding 1911.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  175
                                           'genre'  prerock-vocal
                                        'filesize'  3505970
                                           'mtime'  1620666103
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1911 Clancey_s 1911 prerock vocal
                                      'tag_artist'  Steve Porter
                                     'tag_release'  Victor 16936
                                       'tag_title'  Clancey's Wooden Wedding
                                             'bpm'  86.401
                                    'search_title'  'clancey':1 'clanceys':3 's':2 'wedding':5 'wooden':4
                                   'search_artist'  'porter':2 'steve':1
                                  'search_release'  '16936':2 'victor':1
                                     'search_rest'  '00oldiepop':5 '1911':6 'clancey':7 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':9 's':8 'vocal':10
                                    'search_combo'  '00oldiepop':14 '16936':9C '1911':15 'clancey':1A,16 'clanceys':3A 'country':13 'exotica':11 'jazz':10 'oldies':12 'porter':7B 'prerock':18 's':2A,17 'steve':6B 'victor':8C 'vocal':19 'wedding':5A 'wooden':4A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           '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-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['dance', 'house', 'trance', 'progressive house', 'electro', 'electronic']
                                        'tag_date'  1911
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1620666102.7242851  (2021-05-10 19:01:42)
                             'size'  3505970