======================== unified (from filesystem) ========================
                                         'bitrate'  '217.618'
                                        'duration'  '232'
                                          'artist'  'Nalin & Kane'
                                     'text_people'  ''
                                         'release'  'Dream Dance 6 (disc 1)'
                                           'title'  'Beachball'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  ("['dance', 'trance', 'progressive trance', 'house', 'progressive house', "
 "'electronic']")
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '18'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-th-trance'
                                             'bpm'  '134.021'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Dream Dance 6 (disc 1)'
'TBPM' (BPM (beats per minute))                     '134.021'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-trance'
'TIT2' (Title/songname/content description)         'Beachball'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Nalin & Kane'
'TRCK' (Track number/Position in set)               '18'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['dance',
 'trance',
 'progressive trance',
 'house',
 'progressive house',
 'electronic']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.24 dB'
'TXXX:replaygain_track_peak'                        '0.392543'

========================== row from database ==========================
                                              'id'  1338184
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/05. Beachball - Nalin !26 Kane.mp3
                                         'working'  None
                                         'bitrate'  217
                                    'duration_sec'  232
                                           'genre'  electronic-th-trance
                                        'filesize'  6332528
                                           'mtime'  1621696720
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] 05. !26 electronic th trance
                                      'tag_artist'  Nalin & Kane
                                     'tag_release'  Dream Dance 6 (disc 1)
                                       'tag_title'  Beachball
                                             'bpm'  134.021
                                    'search_title'  'beachball':1
                                   'search_artist'  'kane':2 'nalin':1
                                  'search_release'  '1':6,7 '6':3 'dance':2 'disc':4,5 'dream':1
                                     'search_rest'  '00poprockelectronic':1 '05':7,8 '26':9 'electronic':10 'files':5,6 'loose':3,4 'th':11 'trance':12 'unsorted':2
                                    'search_combo'  '00poprockelectronic':11 '05':17,18 '1':9C,10C '26':19 '6':6C 'beachball':1A 'dance':5C 'disc':7C,8C 'dream':4C 'electronic':20 'files':15,16 'kane':3B 'loose':13,14 'nalin':2B 'th':21 'trance':22 'unsorted':12
                                    'tag_tracknum'  18
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-1', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['dance', 'trance', 'progressive trance', 'house', 'progressive house', 'electronic']
                                        'tag_date'  
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1621696720.4004478  (2021-05-22 17:18:40)
                             'size'  6332528