======================== unified (from filesystem) ========================
                                         'bitrate'  '174.738'
                                        'duration'  '188'
                                          'artist'  'Ilse DeLange'
                                     'text_people'  ''
                                         'release'  'World Of Hurt'
                                           'title'  'What Does Your Heart Say Now'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-4', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-2', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['country', 'singer songwriter', 'female vocalists', 'pop', 'dutch']"
                                     'discogstags'  "['rock', 'folk, world, & country', 'country rock', 'country']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '1998'
                                        'comments'  ''
                                           'genre'  'loc-namerica-country'
                                             'bpm'  '103.431'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'World Of Hurt'
'TBPM' (BPM (beats per minute))                     '103.431'
'TCON' (Content type, a.k.a. Genre)                 'loc-namerica-country'
'TDRC' (Recording time)                             '1998'
'TIT2' (Title/songname/content description)         'What Does Your Heart Say Now'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Ilse DeLange'
'TRCK' (Track number/Position in set)               '4'
'TSSE' (Software/Hardware and settings used for encoding)  'LAME v3.97 (beta)'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rock', 'folk, world, & country', 'country rock', 'country']
'TXXX:lastfmtags'                                   ['country', 'singer songwriter', 'female vocalists', 'pop', 'dutch']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.43 dB'
'TXXX:replaygain_track_peak'                        '0.452796'

========================== row from database ==========================
                                              'id'  1329872
                                            'path'  /data/Music/Bulk/00poprockelectronic/album top 1000/0242 Ilse DeLange - World Of Hurt/World of Hurt-04-What Does Your Heart Say Now.mp3
                                         'working'  None
                                         'bitrate'  174
                                    'duration_sec'  188
                                           'genre'  loc-namerica-country
                                        'filesize'  4110046
                                           'mtime'  1621630243
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic album top 1000 0242 of 04 loc namerica country
                                      'tag_artist'  Ilse DeLange
                                     'tag_release'  World Of Hurt
                                       'tag_title'  What Does Your Heart Say Now
                                             'bpm'  103.431
                                    'search_title'  'does':2 'heart':4 'now':6 'say':5 'what':1 'your':3
                                   'search_artist'  'de':3 'delange':2 'ilse':1 'lange':4
                                  'search_release'  'hurt':3 'of':2 'world':1
                                     'search_rest'  '00poprockelectronic':1 '0242':5 '1000':4 'album':2 'country':9 'loc':7 'namerica':8 'of':6 'top':3
                                    'search_combo'  '00poprockelectronic':14 '0242':18 '1000':17 'album':15 'country':22 'de':9B 'delange':8B 'does':2A 'heart':4A 'hurt':13C 'ilse':7B 'lange':10B 'loc':20 'namerica':21 'now':6A 'of':12C,19 'say':5A 'top':16 'what':1A 'world':11C 'your':3A
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-2', 'q-syn-1', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['country', 'singer songwriter', 'female vocalists', 'pop', 'dutch']
                                        'tag_date'  1998
                                     'discogstags'  ['rock', 'folk, world, & country', 'country rock', 'country']

============================== file details ==============================
                                           'mtime'  1621630243.2478082  (2021-05-21 22:50:43)
                             'size'  4110046