======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '165'
                                          'artist'  '101 Strings'
                                     'text_people'  ''
                                         'release'  '20 Best Of 101 Strings'
                                           'title'  'Edelweiss'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-UNU-1', 'Q-SYN-1', 'Q-BUSY-3', 'Q-GRIT-1', 'q-bass-2', 'q-play-2', "
 "'Q-CHART-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'Q-MIXBEAT-1']")
                                      'lastfmtags'  "['instrumental', 'strings', 'myhitparade', 'myhits', 'easy listening']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  ''
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-easy listening'
                                             'bpm'  '138.5'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     '20 Best Of 101 Strings'
'TBPM' (BPM (beats per minute))                     '138.5'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-easy listening'
'TDRC' (Recording time)                             '2006'
'TIT2' (Title/songname/content description)         'Edelweiss'
'TKEY' (Initial key)                                '10B'
'TPE1' (Lead performer(s)/Soloist(s))               '101 Strings'
'TRCK' (Track number/Position in set)               '5'
'TSSE' (Software/Hardware and settings used for encoding)  'LAME 32bits version 3.98.4 (http://www.mp3dev.org/)'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '1'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-SYN'                                        '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['instrumental', 'strings', 'myhitparade', 'myhits', 'easy listening']
'TXXX:q-bass'                                       '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.20 dB'
'TXXX:replaygain_track_peak'                        '0.425700'

========================== row from database ==========================
                                              'id'  1478966
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/The 101 Strings Orchestra/2006 - 20 Best of 101 Strings/05 - Edelweiss.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  165
                                           'genre'  electronic-generic or radio-easy listening
                                        'filesize'  2654604
                                           'mtime'  1621705584
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country The Orchestra 2006 of 05 electronic generic or radio easy listening
                                      'tag_artist'  101 Strings
                                     'tag_release'  20 Best Of 101 Strings
                                       'tag_title'  Edelweiss
                                             'bpm'  138.5
                                    'search_title'  'edelweiss':1
                                   'search_artist'  '101':1 'strings':2
                                  'search_release'  '101':4 '20':1 'best':2 'of':3 'strings':5
                                     'search_rest'  '2006':7 'country':4 'easy':13 'electronic':9 'exotica':2 'generic':10 'jazz':1 'listening':14 'of':8 'oldies':3 'or':11 'orchestra':6 'radio':12 'the':5
                                    'search_combo'  '101':2B,7C '20':4C '2006':15 'best':5C 'country':12 'easy':21 'edelweiss':1A 'electronic':17 'exotica':10 'generic':18 'jazz':9 'listening':22 'of':6C,16 'oldies':11 'or':19 'orchestra':14 'radio':20 'strings':3B,8C 'the':13
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'Q-MIXBEAT-1', 'q-play-2', 'Q-OLDST-3', 'Q-GRIT-1', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-CHART-2', 'q-drums-1', 'Q-SYN-1', 'q-other-4', 'Q-BUSY-3', 'Q-HAP-3', 'q-bass-2']
                                      'lastfmtags'  ['instrumental', 'strings', 'myhitparade', 'myhits', 'easy listening']
                                        'tag_date'  2006
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621705584.4263787  (2021-05-22 19:46:24)
                             'size'  2654604