======================== unified (from filesystem) ========================
                                         'bitrate'  '180.424'
                                        'duration'  '269'
                                          'artist'  'Jennifer Lopez'
                                     'text_people'  ''
                                         'release'  'On the 6 Bonus remix CD'
                                           'title'  "Feeling' so good (Featureing big Pun & Fat Joe-Bad Boy remix)"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-2', 'Q-OLDST-3', "
 "'Q-UNU-1', 'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-4', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['dance', 'rnb', 'latin', 'female vocalists', 'pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  '5'
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-dance'
                                             'bpm'  '108.239'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'COMM:CDDB Disc ID:XXX'                             '3D06D305'
'COMM:ID3v1 Comment:XXX'                            '3D06D305'
'TALB' (Album/Movie/Show title)                     'On the 6 Bonus remix CD'
'TBPM' (BPM (beats per minute))                     '108.239'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-dance'
'TIT2' (Title/songname/content description)         "Feeling' so good (Featureing big Pun & Fat Joe-Bad Boy remix)"
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Jennifer Lopez'
'TRCK' (Track number/Position in set)               '5/5'
'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'                                    '2'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['dance', 'rnb', 'latin', 'female vocalists', 'pop']
'TXXX:q-bass'                                       '3'
'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-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.30 dB'
'TXXX:replaygain_track_peak'                        '0.456706'

========================== row from database ==========================
                                              'id'  1500101
                                            'path'  /data/Music/Bulk/00poprockelectronic/Jennifer Lopez/On the 6 Remix/Jennifer Lopez - Feeling_ so Good (Featuring Big Pun & Fat Joe-Bad Boy Remix) - 05.mp3
                                         'working'  None
                                         'bitrate'  180
                                    'duration_sec'  269
                                           'genre'  electronic-generic or radio-dance
                                        'filesize'  6090624
                                           'mtime'  1621696303
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Remix Feeling_ Good (Featuring Big Remix) 05 electronic generic or radio dance
                                      'tag_artist'  Jennifer Lopez
                                     'tag_release'  On the 6 Bonus remix CD
                                       'tag_title'  Feeling' so good (Featureing big Pun & Fat Joe-Bad Boy remix)
                                             'bpm'  108.239
                                    'search_title'  'bad':11 'big':7 'boy':13 'fat':9 'featureing':5,6 'feeling':1,2 'good':4 'joe':10 'joebad':12 'pun':8 'remix':14,15 'so':3
                                   'search_artist'  'jennifer':1 'lopez':2
                                  'search_release'  '6':3 'bonus':4 'cd':6 'on':1 'remix':5 'the':2
                                     'search_rest'  '00poprockelectronic':1 'big':7 'dance':13 'electronic':9 'featuring':5,6 'feeling':3 'generic':10 'good':4 'or':11 'radio':12 'remix':2,8
                                    'search_combo'  '00poprockelectronic':24 '6':20C 'bad':11A 'big':7A,30 'bonus':21C 'boy':13A 'cd':23C 'dance':36 'electronic':32 'fat':9A 'featureing':5A,6A 'featuring':28,29 'feeling':1A,2A,26 'generic':33 'good':4A,27 'jennifer':16B 'joe':10A 'joebad':12A 'lopez':17B 'on':18C 'or':34 'pun':8A 'radio':35 'remix':14A,15A,22C,25,31 'so':3A 'the':19C
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-4', 'q-other-1', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['dance', 'rnb', 'latin', 'female vocalists', 'pop']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621696302.544739  (2021-05-22 17:11:42)
                             'size'  6090624