======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '235'
                                          'artist'  'Hot Butter'
                                     'text_people'  ''
                                         'release'  "Greatest Hits of the 70's (dis"
                                           'title'  'Popcorn'
                                           'quals'  ("['Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-UNU-1', "
 "'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-3', "
 "'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', 'q-mixbeat-3']")
                                      'lastfmtags'  "['instrumental', '70s', 'electronic', 'pop', 'synthpop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  ''
                                            'date'  '1975'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-dance'
                                             'bpm'  '126.568'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     "Greatest Hits of the 70's (dis"
'TBPM' (BPM (beats per minute))                     '126.568'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-dance'
'TDRC' (Recording time)                             '1975'
'TIT2' (Title/songname/content description)         'Popcorn'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Hot Butter'
'TRCK' (Track number/Position in set)               '12'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['instrumental', '70s', 'electronic', 'pop', 'synthpop']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.83 dB'
'TXXX:replaygain_track_peak'                        '0.452444'

========================== row from database ==========================
                                              'id'  1501449
                                            'path'  /data/Music/Bulk/00poprockelectronic-generic-dance-trapbeat/00mixable/Unsorted/Hot Butter__Greatest Hits of the 70_s (dis__12 - Popcorn.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  235
                                           'genre'  electronic-generic or radio-dance
                                        'filesize'  3765761
                                           'mtime'  1620558241
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic generic dance trapbeat 00mixable Unsorted Butter__Greatest 70_s (dis__12 electronic generic radio dance
                                      'tag_artist'  Hot Butter
                                     'tag_release'  Greatest Hits of the 70's (dis
                                       'tag_title'  Popcorn
                                             'bpm'  126.568
                                    'search_title'  'popcorn':1
                                   'search_artist'  'butter':2 'hot':1
                                  'search_release'  '70':5 '70s':7 'dis':8,9 'greatest':1 'hits':2 'of':3 's':6 'the':4
                                     'search_rest'  '00mixable':5 '00poprockelectronic':1 '12':12,14 '70':9 'butter':7 'dance':3 'dis':11,13 'electronic':15 'generic':2 'greatest':8 'radio':16 's':10 'trapbeat':4 'unsorted':6
                                    'search_combo'  '00mixable':17 '00poprockelectronic':13 '12':24,26 '70':8C,21 '70s':10C 'butter':3B,19 'dance':15 'dis':11C,12C,23,25 'electronic':27 'generic':14 'greatest':4C,20 'hits':5C 'hot':2B 'of':6C 'popcorn':1A 'radio':28 's':9C,22 'the':7C 'trapbeat':16 'unsorted':18
                                    'tag_tracknum'  12
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', '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-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['instrumental', '70s', 'electronic', 'pop', 'synthpop']
                                        'tag_date'  1975
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620558241.1489158  (2021-05-09 13:04:01)
                             'size'  3765761