======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '151'
                                          'artist'  'Frank Sinatra'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "You're Cheatin' Yourself (If You're Cheatin' On Me)"
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-4', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['easy listening', 'jazz', 'vocal jazz', 'oldies', 'swing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '205'
                                      'tracktotal'  ''
                                            'date'  '1957'
                                        'comments'  ''
                                           'genre'  'prerock-swing'
                                             'bpm'  '113.136'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '113.136'
'TCON' (Content type, a.k.a. Genre)                 'prerock-swing'
'TDRC' (Recording time)                             '1957'
'TIT2' (Title/songname/content description)         "You're Cheatin' Yourself (If You're Cheatin' On Me)"
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'Frank Sinatra'
'TRCK' (Track number/Position in set)               '205'
'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'                                   ['easy listening', 'jazz', 'vocal jazz', 'oldies', 'swing']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+2.95 dB'
'TXXX:replaygain_track_peak'                        '0.589009'

========================== row from database ==========================
                                              'id'  1508161
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1957/1957-205 - Frank Sinatra - You_re Cheatin_ Yourself (If You_re Cheatin_ On Me).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  151
                                           'genre'  prerock-swing
                                        'filesize'  6072320
                                           'mtime'  1620562639
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1957 1957 205 You_re Cheatin_ You_re Cheatin_ prerock swing
                                      'tag_artist'  Frank Sinatra
                                     'tag_release'  None
                                       'tag_title'  You're Cheatin' Yourself (If You're Cheatin' On Me)
                                             'bpm'  113.136
                                    'search_title'  'cheatin':4,5 'if':7,8 'me':10,11 'on':9 're':2 'you':1 'youre':3 'yourself':6
                                   'search_artist'  'frank':1 'sinatra':2
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1957':6 '205':7 'cheatin':10 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':11 're':9 'swing':12 'you':8
                                    'search_combo'  '00oldiepop':18 '1957':19 '205':20 'cheatin':4A,5A,23 'country':17 'exotica':15 'frank':12B 'if':7A,8A 'jazz':14 'me':10A,11A 'oldies':16 'on':9A 'prerock':24 're':2A,22 'sinatra':13B 'swing':25 'you':1A,21 'youre':3A 'yourself':6A
                                    'tag_tracknum'  205
                                      'num_images'  0
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-2', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['easy listening', 'jazz', 'vocal jazz', 'oldies', 'swing']
                                        'tag_date'  1957
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620562638.7431078  (2021-05-09 14:17:18)
                             'size'  6072320