======================== unified (from filesystem) ========================
                                         'bitrate'  '109.345'
                                        'duration'  '388'
                                          'artist'  'Yellowman'
                                     'text_people'  ''
                                         'release'  'Dimitri - Soul'
                                           'title'  'Zungguzungguguzungguzeng'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-3', 'Q-LOCALNESS-2', 'Q-HHRNBTT-2', "
 "'Q-OLDST-2', 'Q-SYN-2', 'Q-BUSY-2', 'Q-GRIT-2', 'Q-PLAY-3', 'q-bass-4', "
 "'Q-CHART-2', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-2', "
 "'Q-MIXBEAT-2']")
                                      'lastfmtags'  "['reggae', 'dub', 'ragga', 'dancehall', 'jamaica']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'funk or soul'
                                             'bpm'  '84.1'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Dimitri - Soul'
'TBPM' (BPM (beats per minute))                     '84.1'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul'
'TIT2' (Title/songname/content description)         'Zungguzungguguzungguzeng'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Yellowman'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TSSE' (Software/Hardware and settings used for encoding)  'Lavf58.45.100'
'TXXX:Q-BUSY'                                       '2'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-MIXBEAT'                                    '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-SYN'                                        '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['reggae', 'dub', 'ragga', 'dancehall', 'jamaica']
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.61 dB'
'TXXX:replaygain_track_peak'                        '0.855052'

========================== row from database ==========================
                                              'id'  1477572
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Dimitri/Soul/Yellowman   Zungguzungguguzungguzeng-HV46OGU7ksE.mp3
                                         'working'  None
                                         'bitrate'  109
                                    'duration_sec'  388
                                           'genre'  funk or soul
                                        'filesize'  5318119
                                           'mtime'  1621695779
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm HV46OGU7ksE funk or soul
                                      'tag_artist'  Yellowman
                                     'tag_release'  Dimitri - Soul
                                       'tag_title'  Zungguzungguguzungguzeng
                                             'bpm'  84.1
                                    'search_title'  'zungguzungguguzungguzeng':1
                                   'search_artist'  'yellowman':1
                                  'search_release'  'dimitri':1 'soul':2
                                     'search_rest'  'e':6 'funk':2 'hv46ogu7ks':5 'hv46ogu7kse':1 'or':3 'soul':4
                                    'search_combo'  'dimitri':3C 'e':10 'funk':6 'hv46ogu7ks':9 'hv46ogu7kse':5 'or':7 'soul':4C,8 'yellowman':2B 'zungguzungguguzungguzeng':1A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-2', 'Q-LOCALNESS-2', 'q-piano-1', 'Q-MIXBEAT-2', 'Q-OLDST-2', 'Q-GRIT-2', 'Q-UNU-1', 'Q-JZFKS-3', 'Q-CHART-2', 'q-drums-4', 'Q-SYN-2', 'q-other-1', 'Q-BUSY-2', 'Q-HAP-3', 'Q-PLAY-3', 'q-bass-4']
                                      'lastfmtags'  ['reggae', 'dub', 'ragga', 'dancehall', 'jamaica']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621695778.7694795  (2021-05-22 17:02:58)
                             'size'  5318119