======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '374'
                                          'artist'  'Prince/Lenny Kravitz - 2000 Eve'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Fly Away - Live Remix'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-3', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '00'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'funk or soul-funk-pop'
                                             'bpm'  '119.617'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'PCNT' (Play counter)                               PCNT(count=0)
'TBPM' (BPM (beats per minute))                     '119.617'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul-funk-pop'
'TIT2' (Title/songname/content description)         'Fly Away - Live Remix'
'TKEY' (Initial key)                                '8A'
'TLEN' (Length)                                     '374000'
'TPE1' (Lead performer(s)/Soloist(s))               'Prince/Lenny Kravitz - 2000 Eve'
'TRCK' (Track number/Position in set)               '00'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.04 dB'
'TXXX:replaygain_track_peak'                        '0.500404'

========================== row from database ==========================
                                              'id'  789175
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Prince/Prince & Lenny Kravitz - Live Remix Fly Away (2000 Eve).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  374
                                           'genre'  funk or soul-funk-pop
                                        'filesize'  5994368
                                           'mtime'  1620531310
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country & (2000 Eve) funk or soul funk pop
                                      'tag_artist'  Prince/Lenny Kravitz - 2000 Eve
                                     'tag_release'  None
                                       'tag_title'  Fly Away - Live Remix
                                             'bpm'  119.617
                                    'search_title'  'away':2 'fly':1 'live':3 'remix':4
                                   'search_artist'  '2000':5 'eve':6 'kravitz':4 'lenny':2 'prince':1 'princelenny':3
                                  'search_release'  
                                     'search_rest'  '2000':5,6 'country':4 'eve':7,8 'exotica':2 'funk':9 'jazz':1 'oldies':3 'or':10 'pop':12 'soul':11
                                    'search_combo'  '2000':9B,15,16 'away':2A 'country':14 'eve':10B,17,18 'exotica':12 'fly':1A 'funk':19 'jazz':11 'kravitz':8B 'lenny':6B 'live':3A 'oldies':13 'or':20 'pop':22 'prince':5B 'princelenny':7B 'remix':4A 'soul':21
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620531310.299251  (2021-05-09 05:35:10)
                             'size'  5994368