======================== unified (from filesystem) ========================
                                         'bitrate'  '177.321'
                                        'duration'  '194'
                                          'artist'  'Matt Bianco'
                                     'text_people'  ''
                                         'release'  'The Best Of Matt Bianco'
                                           'title'  'Yeh-Yeh'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-3', "
 "'Q-OLDST-3', 'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['smooth jazz', 'jazz', 'drjazzmrfunkmusic', 'pop', '80s', 'latin jazz']"
                                     'discogstags'  "['electronic', 'jazzdance']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  '16'
                                            'date'  '1984'
                                        'comments'  ''
                                           'genre'  'loc-style-latin'
                                             'bpm'  '119.335'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'COMM:CDDB Disc ID:XXX'                             'D5109710'
'COMM:ID3v1 Comment:XXX'                            'D5109710'
'TALB' (Album/Movie/Show title)                     'The Best Of Matt Bianco'
'TBPM' (BPM (beats per minute))                     '119.335'
'TCON' (Content type, a.k.a. Genre)                 'loc-style-latin'
'TDRC' (Recording time)                             '1984'
'TIT2' (Title/songname/content description)         'Yeh-Yeh'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Matt Bianco'
'TRCK' (Track number/Position in set)               '2/16'
'TSSE' (Software/Hardware and settings used for encoding)  'Audiograbber 1.80, LAME dll 3.89, VBR 3, Stereo, High quality'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['electronic', 'jazzdance']
'TXXX:lastfmtags'                                   ['smooth jazz', 'jazz', 'drjazzmrfunkmusic', 'pop', '80s', 'latin jazz']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.67 dB'
'TXXX:replaygain_track_peak'                        '0.708341'

========================== row from database ==========================
                                              'id'  1273440
                                            'path'  /data/Music/Bulk/00localcharacter/Matt Bianco/The Best Of Matt Bianco/Matt Bianco - 02 - Yeh-Yeh.mp3
                                         'working'  None
                                         'bitrate'  177
                                    'duration_sec'  194
                                           'genre'  loc-style-latin
                                        'filesize'  4323617
                                           'mtime'  1620592769
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 02 loc style latin
                                      'tag_artist'  Matt Bianco
                                     'tag_release'  The Best Of Matt Bianco
                                       'tag_title'  Yeh-Yeh
                                             'bpm'  119.335
                                    'search_title'  'yeh':1,2 'yehyeh':3
                                   'search_artist'  'bianco':2 'matt':1
                                  'search_release'  'best':2 'bianco':5 'matt':4 'of':3 'the':1
                                     'search_rest'  'latin':3 'loc':1 'style':2
                                    'search_combo'  'best':7C 'bianco':5B,10C 'latin':13 'loc':11 'matt':4B,9C 'of':8C 'style':12 'the':6C 'yeh':1A,2A 'yehyeh':3A
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-4', 'q-syn-1', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['smooth jazz', 'jazz', 'drjazzmrfunkmusic', 'pop', '80s', 'latin jazz']
                                        'tag_date'  1984
                                     'discogstags'  ['electronic', 'jazzdance']

============================== file details ==============================
                                           'mtime'  1620592768.8188941  (2021-05-09 22:39:28)
                             'size'  4323617