======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '167'
                                          'artist'  'Neil Young'
                                     'text_people'  ''
                                         'release'  'Silver and Gold'
                                           'title'  'Good to See You'
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-4', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['folk rock', 'rock', 'singer songwriter', 'folk', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-folk'
                                             'bpm'  '100.356'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Silver and Gold'
'TBPM' (BPM (beats per minute))                     '100.356'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-folk'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'Good to See You'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Neil Young'
'TRCK' (Track number/Position in set)               '8'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['folk rock', 'rock', 'singer songwriter', 'folk', 'classic rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.29 dB'
'TXXX:replaygain_track_peak'                        '0.577861'

========================== row from database ==========================
                                              'id'  1320756
                                            'path'  /data/Music/Bulk/00poprockelectronic/Neil Young/Neil Young_/Silver & Gold/Neil Young - Good to See You - 01.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  167
                                           'genre'  ifs-songwriter-folk
                                        'filesize'  4032721
                                           'mtime'  1636400705
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Young_ & 01 ifs songwriter folk
                                      'tag_artist'  Neil Young
                                     'tag_release'  Silver and Gold
                                       'tag_title'  Good to See You
                                             'bpm'  100.356
                                    'search_title'  'good':1 'see':3 'to':2 'you':4
                                   'search_artist'  'neil':1 'young':2
                                  'search_release'  'and':2 'gold':3 'silver':1
                                     'search_rest'  '00poprockelectronic':1 'folk':5 'ifs':3 'songwriter':4 'young':2
                                    'search_combo'  '00poprockelectronic':10 'and':8C 'folk':14 'gold':9C 'good':1A 'ifs':12 'neil':5B 'see':3A 'silver':7C 'songwriter':13 'to':2A 'you':4A 'young':6B,11
                                    'tag_tracknum'  8
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['folk rock', 'rock', 'singer songwriter', 'folk', 'classic rock']
                                        'tag_date'  2000
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636400704.9262667  (2021-11-08 20:45:04)
                             'size'  4032721