======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '542'
                                          'artist'  'Sarah McLachlan'
                                     'text_people'  ''
                                         'release'  'Remixed'
                                           'title'  'I Love You (BT mix)'
                                           'quals'  ("['Q-HAP-2', 'Q-PLAY-2', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-3', 'Q-UNU-1', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', "
 "'q-chart-4', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['alternative', 'canadian', 'female vocalists', 'pop', 'singer songwriter']"
                                     'discogstags'  "['electronic', 'trance', 'progressive trance']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-dance'
                                             'bpm'  '137.946'
                                             'key'  '4B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Remixed'
'TBPM' (BPM (beats per minute))                     '137.946'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-dance'
'TDRC' (Recording time)                             '2001'
'TIT2' (Title/songname/content description)         'I Love You (BT mix)'
'TKEY' (Initial key)                                '4B'
'TPE1' (Lead performer(s)/Soloist(s))               'Sarah McLachlan'
'TRCK' (Track number/Position in set)               '4'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['electronic', 'trance', 'progressive trance']
'TXXX:lastfmtags'                                   ['alternative', 'canadian', 'female vocalists', 'pop', 'singer songwriter']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.82 dB'
'TXXX:replaygain_track_peak'                        '0.511182'

========================== row from database ==========================
                                              'id'  1408012
                                            'path'  /data/Music/Bulk/00poprockelectronic-generic-dance-trapbeat/Sarah McLachlan/MBZ;#Sarah McLachlan;#Remixed;#04;#I Love You (BT mix).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  542
                                           'genre'  electronic-generic or radio-dance
                                        'filesize'  13020674
                                           'mtime'  1642097830
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic generic dance trapbeat MBZ;#Sarah McLachlan;#Remixed;#04;#I electronic generic or radio dance
                                      'tag_artist'  Sarah McLachlan
                                     'tag_release'  Remixed
                                       'tag_title'  I Love You (BT mix)
                                             'bpm'  137.946
                                    'search_title'  'bt':4,5 'i':1 'love':2 'mix':6,7 'you':3
                                   'search_artist'  'lachlan':4 'mc':3 'mclachlan':2 'sarah':1
                                  'search_release'  'remixed':1
                                     'search_rest'  '00poprockelectronic':1 '04':11,15,23,27 'dance':3 'electronic':17 'generic':2 'i':12,16,24,28 'lachlan':21,25 'mbz':5,7 'mc':20 'mclachlan':9,13 'or':18 'radio':19 'remixed':10,14,22,26 'sarah':6,8 'trapbeat':4
                                    'search_combo'  '00poprockelectronic':13 '04':23,27,35,39 'bt':4A,5A 'dance':15 'electronic':29 'generic':14 'i':1A,24,28,36,40 'lachlan':11B,33,37 'love':2A 'mbz':17,19 'mc':10B,32 'mclachlan':9B,21,25 'mix':6A,7A 'or':30 'radio':31 'remixed':12C,22,26,34,38 'sarah':8B,18,20 'trapbeat':16 'you':3A
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  4B
                                           'quals'  ['Q-HAP-2', 'Q-PLAY-2', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-UNU-1', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-chart-4', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-2', 'q-mixbeat-3']
                                      'lastfmtags'  ['alternative', 'canadian', 'female vocalists', 'pop', 'singer songwriter']
                                        'tag_date'  2001
                                     'discogstags'  ['electronic', 'trance', 'progressive trance']

============================== file details ==============================
                                           'mtime'  1642097829.5899758  (2022-01-13 19:17:09)
                             'size'  13020674