======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '250'
                                          'artist'  '101 Strings'
                                     'text_people'  ''
                                         'release'  'Ciao, Ciao Italia'
                                           'title'  'Volare'
                                           '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-3', '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']"
                                     'discogstags'  "['easy listening', 'pop', 'folk, world, & country']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '01'
                                      'tracktotal'  ''
                                            'date'  '1993'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-easy listening'
                                             'bpm'  '123.0'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Ciao, Ciao Italia'
'TBPM' (BPM (beats per minute))                     '123.0'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-easy listening'
'TDRC' (Recording time)                             '1993'
'TIT2' (Title/songname/content description)         'Volare'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               '101 Strings'
'TPE2' (Band/orchestra/accompaniment)               '101 Strings'
'TRCK' (Track number/Position in set)               '01'
'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:discogstags'                                  ['easy listening', 'pop', 'folk, world, & country']
'TXXX:lastfmtags'                                   ['instrumental', 'strings', 'myhitparade', 'myhits', 'easy listening']
'TXXX:q-bass'                                       '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.32 dB'
'TXXX:replaygain_track_peak'                        '0.545004'

========================== row from database ==========================
                                              'id'  1479086
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/The 101 Strings Orchestra/1993 - Ciao Ciao Italia/01 - Volare.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  250
                                           'genre'  electronic-generic or radio-easy listening
                                        'filesize'  10031793
                                           'mtime'  1621705547
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country The Orchestra 1993 electronic generic or radio easy listening
                                      'tag_artist'  101 Strings
                                     'tag_release'  Ciao, Ciao Italia
                                       'tag_title'  Volare
                                             'bpm'  123.0
                                    'search_title'  'volare':1
                                   'search_artist'  '101':1 'strings':2
                                  'search_release'  'ciao':1,2 'italia':3
                                     'search_rest'  '1993':7 'country':4 'easy':12 'electronic':8 'exotica':2 'generic':9 'jazz':1 'listening':13 'oldies':3 'or':10 'orchestra':6 'radio':11 'the':5
                                    'search_combo'  '101':2B '1993':13 'ciao':4C,5C 'country':10 'easy':18 'electronic':14 'exotica':8 'generic':15 'italia':6C 'jazz':7 'listening':19 'oldies':9 'or':16 'orchestra':12 'radio':17 'strings':3B 'the':11 'volare':1A
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  6A
                                           '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-3']
                                      'lastfmtags'  ['instrumental', 'strings', 'myhitparade', 'myhits', 'easy listening']
                                        'tag_date'  1993
                                     'discogstags'  ['easy listening', 'pop', 'folk, world, & country']

============================== file details ==============================
                                           'mtime'  1621705547.0314763  (2021-05-22 19:45:47)
                             'size'  10031793