======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '172'
                                          'artist'  'Doris Day & The Mellomen'
                                     'text_people'  ''
                                         'release'  'Your Hit Parade: 1954'
                                           'title'  'If I Give My Heart To You'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['jazz', 'female vocalists', 'oldies', '50s', 'easy listening']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '20'
                                      'tracktotal'  ''
                                            'date'  '1954'
                                        'comments'  ''
                                           'genre'  'prerock-vocal'
                                             'bpm'  '133.316'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'COMM::XXX'                                         '54-021 POS 3'
'COMM:ID3v1 Comment:XXX'                            '54-021 POS 3'
'TALB' (Album/Movie/Show title)                     'Your Hit Parade: 1954'
'TBPM' (BPM (beats per minute))                     '133.316'
'TCON' (Content type, a.k.a. Genre)                 'prerock-vocal'
'TIT2' (Title/songname/content description)         'If I Give My Heart To You'
'TKEY' (Initial key)                                '11B'
'TPE1' (Lead performer(s)/Soloist(s))               'Doris Day & The Mellomen'
'TPE2' (Band/orchestra/accompaniment)               'Doris Day & The Mellomen'
'TRCK' (Track number/Position in set)               '20'
'TXXX:DATE'                                         '1954'
'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:lastfmtags'                                   ['jazz', 'female vocalists', 'oldies', '50s', 'easy listening']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.74 dB'
'TXXX:replaygain_track_peak'                        '0.458007'

========================== row from database ==========================
                                              'id'  1438650
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1954/54-021 - Doris Day & The Mellomen - If I Give My Heart To You.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  172
                                           'genre'  prerock-vocal
                                        'filesize'  6899584
                                           'mtime'  1621853323
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 021 prerock vocal
                                      'tag_artist'  Doris Day & The Mellomen
                                     'tag_release'  Your Hit Parade: 1954
                                       'tag_title'  If I Give My Heart To You
                                             'bpm'  133.316
                                    'search_title'  'give':3 'heart':5 'i':2 'if':1 'my':4 'to':6 'you':7
                                   'search_artist'  'day':2 'doris':1 'mellomen':4 'the':3
                                  'search_release'  '1954':5 'hit':2 'parade':3,4 'your':1
                                     'search_rest'  '00oldiepop':5 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':6 'vocal':7
                                    'search_combo'  '00oldiepop':21 '1954':16C 'country':20 'day':9B 'doris':8B 'exotica':18 'give':3A 'heart':5A 'hit':13C 'i':2A 'if':1A 'jazz':17 'mellomen':11B 'my':4A 'oldies':19 'parade':14C,15C 'prerock':22 'the':10B 'to':6A 'vocal':23 'you':7A 'your':12C
                                    'tag_tracknum'  20
                                      'num_images'  0
                                             'key'  11B
                                           '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-1', 'Q-HAP-3', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['jazz', 'female vocalists', 'oldies', '50s', 'easy listening']
                                        'tag_date'  1954
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621853322.5953698  (2021-05-24 12:48:42)
                             'size'  6899584