======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '211'
                                          'artist'  'Elvis vs. JXL'
                                     'text_people'  ''
                                         'release'  'Bruce Almighty'
                                           'title'  'A Little Less Conversation'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'q-syn-3', 'q-bass-4', 'q-busy-3', "
 "'q-grit-2', 'q-play-2', 'Q-OLDST-3', 'q-chart-3', 'q-drums-4', 'q-other-2', "
 "'q-piano-1', 'q-vocals-2', 'Q-HHRNBTT-1', 'q-mixbeat-3', 'Q-LOCALNESS-1']")
                                      'lastfmtags'  "['dance', 'electronic', 'pop', 'elvis', 'mashup']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  ''
                                            'date'  '1998'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-dance'
                                             'bpm'  '114.999'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Bruce Almighty'
'TBPM' (BPM (beats per minute))                     '114.999'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-dance'
'TDRC' (Recording time)                             '1998'
'TIT2' (Title/songname/content description)         'A Little Less Conversation'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Elvis vs. JXL'
'TRCK' (Track number/Position in set)               '5'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['dance', 'electronic', 'pop', 'elvis', 'mashup']
'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'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.79 dB'
'TXXX:replaygain_track_peak'                        '0.482092'

========================== row from database ==========================
                                              'id'  1456688
                                            'path'  /data/Music/Bulk/00poprockelectronic-generic-dance-trapbeat/00mixable/Unsorted/Junkie XL__Bruce Almighty__05 - A Little Less Conversation.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  211
                                           'genre'  electronic-generic or radio-dance
                                        'filesize'  5076834
                                           'mtime'  1621695810
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic generic dance trapbeat 00mixable Unsorted Junkie XL__Bruce Almighty__05 electronic generic or radio dance
                                      'tag_artist'  Elvis vs. JXL
                                     'tag_release'  Bruce Almighty
                                       'tag_title'  A Little Less Conversation
                                             'bpm'  114.999
                                    'search_title'  'a':1 'conversation':4 'less':3 'little':2
                                   'search_artist'  'elvis':1 'jxl':4 'vs':2,3
                                  'search_release'  'almighty':2 'bruce':1
                                     'search_rest'  '00mixable':5 '00poprockelectronic':1 '05':11 'almighty':10 'bruce':9 'dance':3 'electronic':12 'generic':2 'junkie':7 'or':13 'radio':14 'trapbeat':4 'unsorted':6 'xl':8
                                    'search_combo'  '00mixable':15 '00poprockelectronic':11 '05':21 'a':1A 'almighty':10C,20 'bruce':9C,19 'conversation':4A 'dance':13 'electronic':22 'elvis':5B 'generic':12 'junkie':17 'jxl':8B 'less':3A 'little':2A 'or':23 'radio':24 'trapbeat':14 'unsorted':16 'vs':6B,7B 'xl':18
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', '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-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['dance', 'electronic', 'pop', 'elvis', 'mashup']
                                        'tag_date'  1998
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621695810.0816402  (2021-05-22 17:03:30)
                             'size'  5076834