======================== unified (from filesystem) ========================
                                         'bitrate'  '96.0'
                                        'duration'  '181'
                                          'artist'  'Glen Gray & Casa Loma Orchestra'
                                     'text_people'  ''
                                         'release'  'The Complete Okeh and Brunswick Hits'
                                           'title'  'Champagne Waltz'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', '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-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['stoned sea breeze hammock afternoon']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1934'
                                        'comments'  ''
                                           'genre'  'prerock-band'
                                             'bpm'  '118.915'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         'Debuted 1934 and peaked at #7 on Various Charts. Source: Pop Memories'
'COMM:ID3v1 Comment:XXX'                            'Debuted 1934 and peaked at #7'
'TALB' (Album/Movie/Show title)                     'The Complete Okeh and Brunswick Hits'
'TBPM' (BPM (beats per minute))                     '118.915'
'TCON' (Content type, a.k.a. Genre)                 'prerock-band'
'TDRC' (Recording time)                             '1934'
'TENC' (Encoded by)                                 'Exact Audio Copy (Burst mode)'
'TIT2' (Title/songname/content description)         'Champagne Waltz'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Glen Gray & Casa Loma Orchestra'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   'stoned sea breeze hammock afternoon'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+3.31 dB'
'TXXX:replaygain_track_peak'                        '0.797898'

========================== row from database ==========================
                                              'id'  1455323
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1934/Champagne waltz - Glen Gray and The Casa Loma Orchestra (vocal by Kenny Sargent).mp3
                                         'working'  None
                                         'bitrate'  96
                                    'duration_sec'  181
                                           'genre'  prerock-band
                                        'filesize'  2183058
                                           'mtime'  1620560209
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1934 waltz (vocal by Kenny Sargent) prerock band
                                      'tag_artist'  Glen Gray & Casa Loma Orchestra
                                     'tag_release'  The Complete Okeh and Brunswick Hits
                                       'tag_title'  Champagne Waltz
                                             'bpm'  118.915
                                    'search_title'  'champagne':1 'waltz':2
                                   'search_artist'  'casa':3 'glen':1 'gray':2 'loma':4 'orchestra':5
                                  'search_release'  'and':4 'brunswick':5 'complete':2 'hits':6 'okeh':3 'the':1
                                     'search_rest'  '00oldiepop':5 '1934':6 'band':15 'by':10 'country':4 'exotica':2 'jazz':1 'kenny':11 'oldies':3 'prerock':14 'sargent':12,13 'vocal':8,9 'waltz':7
                                    'search_combo'  '00oldiepop':18 '1934':19 'and':11C 'band':28 'brunswick':12C 'by':23 'casa':5B 'champagne':1A 'complete':9C 'country':17 'exotica':15 'glen':3B 'gray':4B 'hits':13C 'jazz':14 'kenny':24 'loma':6B 'okeh':10C 'oldies':16 'orchestra':7B 'prerock':27 'sargent':25,26 'the':8C 'vocal':21,22 'waltz':2A,20
                                    '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-2', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['stoned sea breeze hammock afternoon']
                                        'tag_date'  1934
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620560208.9589906  (2021-05-09 13:36:48)
                             'size'  2183058