======================== unified (from filesystem) ========================
                                         'bitrate'  '177.118'
                                        'duration'  '539'
                                          'artist'  'Prince'
                                     'text_people'  ''
                                         'release'  "Sign 'O' The Times (Disk 2)"
                                           'title'  "It's Gonna Be A Beautiful Night"
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-3', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-4', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['80s', 'rock', 'pop', 'funk']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  '7'
                                            'date'  '1987'
                                        'comments'  ''
                                           'genre'  'funk or soul-funk-pop'
                                             'bpm'  '113.7'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'COMM:CDDB Disc ID:XXX'                             '4B094D07'
'TALB' (Album/Movie/Show title)                     "Sign 'O' The Times (Disk 2)"
'TBPM' (BPM (beats per minute))                     '113.7'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul-funk-pop'
'TDRC' (Recording time)                             '1987'
'TIT2' (Title/songname/content description)         "It's Gonna Be A Beautiful Night"
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Prince'
'TRCK' (Track number/Position in set)               '6/7'
'TSSE' (Software/Hardware and settings used for encoding)  'Audiograbber 1.80, LAME dll 3.89, VBR 3, Stereo, High quality'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['80s', 'rock', 'pop', 'funk']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+1.60 dB'
'TXXX:replaygain_track_peak'                        '0.601353'

========================== row from database ==========================
                                              'id'  1525665
                                            'path'  /data/Music/Bulk/00poprockelectronic/Prince/Sign _O_ The Times/Prince - It_s Gonna Be A Beautiful Night.mp3
                                         'working'  None
                                         'bitrate'  177
                                    'duration_sec'  539
                                           'genre'  funk or soul-funk-pop
                                        'filesize'  11948558
                                           'mtime'  1620571788
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic _O_ It_s funk or soul funk pop
                                      'tag_artist'  Prince
                                     'tag_release'  Sign 'O' The Times (Disk 2)
                                       'tag_title'  It's Gonna Be A Beautiful Night
                                             'bpm'  113.7
                                    'search_title'  'a':6 'be':5 'beautiful':7 'gonna':4 'it':1 'its':3 'night':8 's':2
                                   'search_artist'  'prince':1
                                  'search_release'  '2':8,9 'disk':6,7 'o':2,3 'sign':1 'the':4 'times':5
                                     'search_rest'  '00poprockelectronic':1 'funk':5 'it':3 'o':2 'or':6 'pop':8 's':4 'soul':7
                                    'search_combo'  '00poprockelectronic':19 '2':17C,18C 'a':6A 'be':5A 'beautiful':7A 'disk':15C,16C 'funk':23 'gonna':4A 'it':1A,21 'its':3A 'night':8A 'o':11C,12C,20 'or':24 'pop':26 'prince':9B 's':2A,22 'sign':10C 'soul':25 'the':13C 'times':14C
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-3', 'q-bass-2', 'q-grit-3']
                                      'lastfmtags'  ['80s', 'rock', 'pop', 'funk']
                                        'tag_date'  1987
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620571788.2802627  (2021-05-09 16:49:48)
                             'size'  11948558