======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '170'
                                          'artist'  'Nina Simone'
                                     'text_people'  ''
                                         'release'  'Sugar in My Bowl: The Very Best of Nina Simone 1967-1972 (disc 1)'
                                           'title'  'Since I Fell for You'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-JZFKS-3', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'Q-PLAY-3', 'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-1', "
 "'Q-PIANO-2', 'q-chart-4', 'q-drums-1', 'q-other-2', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['vocal jazz', 'blues', 'jazz', 'female vocalists', 'soul']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-vocal;funk or soul'
                                             'bpm'  '135.455'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Sugar in My Bowl: The Very Best of Nina Simone 1967-1972 (disc 1)'
'TBPM' (BPM (beats per minute))                     '135.455'
'TCON' (Content type, a.k.a. Genre)                 ['prerock-jb-jazz-vocal', 'funk or soul']
'TIT2' (Title/songname/content description)         'Since I Fell for You'
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'Nina Simone'
'TRCK' (Track number/Position in set)               '2'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['vocal jazz', 'blues', 'jazz', 'female vocalists', 'soul']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.57 dB'
'TXXX:replaygain_track_peak'                        '0.745173'

========================== row from database ==========================
                                              'id'  674504
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Nina Simone/02 - Since I Fell for You.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  170
                                           'genre'  prerock-jb-jazz-vocal;funk or soul
                                        'filesize'  5476407
                                           'mtime'  1620532942
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 02 prerock jb jazz vocal;funk soul
                                      'tag_artist'  Nina Simone
                                     'tag_release'  Sugar in My Bowl: The Very Best of Nina Simone 1967-1972 (disc 1)
                                       'tag_title'  Since I Fell for You
                                             'bpm'  135.455
                                    'search_title'  'fell':3 'for':4 'i':2 'since':1 'you':5
                                   'search_artist'  'nina':1 'simone':2
                                  'search_release'  '1':17,18 '1967':12 '19671972':14 '1972':13 'best':8 'bowl':4,5 'disc':15,16 'in':2 'my':3 'nina':10 'of':9 'simone':11 'sugar':1 'the':6 'very':7
                                     'search_rest'  'country':4 'exotica':2 'funk':8,10 'jazz':1 'jb':6 'oldies':3 'prerock':5 'soul':11 'vocal':7,9
                                    'search_combo'  '1':24C,25C '1967':19C '19671972':21C '1972':20C 'best':15C 'bowl':11C,12C 'country':29 'disc':22C,23C 'exotica':27 'fell':3A 'for':4A 'funk':33,35 'i':2A 'in':9C 'jazz':26 'jb':31 'my':10C 'nina':6B,17C 'of':16C 'oldies':28 'prerock':30 'simone':7B,18C 'since':1A 'soul':36 'sugar':8C 'the':13C 'very':14C 'vocal':32,34 'you':5A
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-mixbeat-1', 'Q-PIANO-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-4', 'q-other-2', 'Q-HAP-3', 'Q-PLAY-3', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['vocal jazz', 'blues', 'jazz', 'female vocalists', 'soul']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620532941.7423308  (2021-05-09 06:02:21)
                             'size'  5476407