======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '220'
                                          'artist'  'jennifer lopez'
                                     'text_people'  ''
                                         'release'  'Top 40'
                                           'title'  'im glad-wk29-woei'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-2', 'Q-OLDST-3', "
 "'Q-UNU-1', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['dance', 'rnb', 'latin', 'female vocalists', 'pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-dance'
                                             'bpm'  '94.021'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Top 40'
'TBPM' (BPM (beats per minute))                     '94.021'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-dance'
'TIT2' (Title/songname/content description)         'im glad-wk29-woei'
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               'jennifer lopez'
'TXXX:Mp3gain_minmax'                               '089,205'
'TXXX:Mp3gain_undo'                                 '+005,+005,N'
'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:Tracknum'                                     '37'
'TXXX:lastfmtags'                                   ['dance', 'rnb', 'latin', 'female vocalists', 'pop']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'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'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.77 dB'
'TXXX:replaygain_track_peak'                        '0.532258'

========================== row from database ==========================
                                              'id'  1407548
                                            'path'  /data/Music/Bulk/00poprockelectronic-generic-dance-trapbeat/Top 40/37-jennifer_lopez_-_im_glad-wk29-woei.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  220
                                           'genre'  electronic-generic or radio-dance
                                        'filesize'  5305140
                                           'mtime'  1621695902
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic generic dance trapbeat 37 jennifer_lopez_ _im_glad electronic generic or radio dance
                                      'tag_artist'  jennifer lopez
                                     'tag_release'  Top 40
                                       'tag_title'  im glad-wk29-woei
                                             'bpm'  94.021
                                    'search_title'  'glad':2 'gladwk29woei':5 'im':1 'wk29':3 'woei':4
                                   'search_artist'  'jennifer':1 'lopez':2
                                  'search_release'  '40':2 'top':1
                                     'search_rest'  '00poprockelectronic':1 '37':5 'dance':3 'electronic':10 'generic':2 'glad':9 'im':8 'jennifer':6 'lopez':7 'or':11 'radio':12 'trapbeat':4
                                    'search_combo'  '00poprockelectronic':10 '37':14 '40':9C 'dance':12 'electronic':19 'generic':11 'glad':2A,18 'gladwk29woei':5A 'im':1A,17 'jennifer':6B,15 'lopez':7B,16 'or':20 'radio':21 'top':8C 'trapbeat':13 'wk29':3A 'woei':4A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-2', '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-3', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['dance', 'rnb', 'latin', 'female vocalists', 'pop']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621695901.8455834  (2021-05-22 17:05:01)
                             'size'  5305140