======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '260'
                                          'artist'  "Dave Kaplan's Melodists"
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'May You Laugh In Your Dreams (vocal - James Doherty)'
                                           '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-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1924'
                                        'comments'  ''
                                           'genre'  'prerock-band'
                                             'bpm'  '98.6'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:MusicMatch_Bio:eng'                           'Sound edited by Breda4@hotmail.com'
'TBPM' (BPM (beats per minute))                     '98.6'
'TCON' (Content type, a.k.a. Genre)                 'prerock-band'
'TDRC' (Recording time)                             '1924-07-23'
'TIT2' (Title/songname/content description)         'May You Laugh In Your Dreams (vocal - James Doherty)'
'TKEY' (Initial key)                                '8A'
'TLEN' (Length)                                     '260000'
'TPE1' (Lead performer(s)/Soloist(s))               "Dave Kaplan's Melodists"
'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: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'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.32 dB'
'TXXX:replaygain_track_peak'                        '0.744241'

========================== row from database ==========================
                                              'id'  1507611
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1924/Dave Kaplan_s Melodists - May You Laugh In Your Dreams (vocal - James Doherty) 23-7-1924.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  260
                                           'genre'  prerock-band
                                        'filesize'  5269170
                                           'mtime'  1620559903
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1924 Kaplan_s 23 7 1924 prerock band
                                      'tag_artist'  Dave Kaplan's Melodists
                                     'tag_release'  None
                                       'tag_title'  May You Laugh In Your Dreams (vocal - James Doherty)
                                             'bpm'  98.6
                                    'search_title'  'doherty':10,11 'dreams':6 'in':4 'james':9 'laugh':3 'may':1 'vocal':7,8 'you':2 'your':5
                                   'search_artist'  'dave':1 'kaplan':2 'kaplans':4 'melodists':5 's':3
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1924':6 '23':9 '7':10 'band':12 'country':4 'exotica':2 'jazz':1 'kaplan':7 'oldies':3 'prerock':11 's':8
                                    'search_combo'  '00oldiepop':21 '1924':22 '23':25 '7':26 'band':28 'country':20 'dave':12B 'doherty':10A,11A 'dreams':6A 'exotica':18 'in':4A 'james':9A 'jazz':17 'kaplan':13B,23 'kaplans':15B 'laugh':3A 'may':1A 'melodists':16B 'oldies':19 'prerock':27 's':14B,24 'vocal':7A,8A 'you':2A 'your':5A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  8A
                                           '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-1', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1924
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620559903.2841473  (2021-05-09 13:31:43)
                             'size'  5269170