======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '117'
                                          'artist'  'Alma Gluck'
                                     'text_people'  ''
                                         'release'  'Victor 64190'
                                           'title'  'From The Land Of The Sky-blue Water'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['all', 'soprano', 'gramophone', 'classical', 'amazing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1911'
                                        'comments'  ''
                                           'genre'  'prerock-vocal'
                                             'bpm'  '145.895'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Victor 64190'
'TBPM' (BPM (beats per minute))                     '145.895'
'TCON' (Content type, a.k.a. Genre)                 'prerock-vocal'
'TDRC' (Recording time)                             '1911'
'TIT2' (Title/songname/content description)         'From The Land Of The Sky-blue Water'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'Alma Gluck'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['all', 'soprano', 'gramophone', 'classical', 'amazing']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.53 dB'
'TXXX:replaygain_track_peak'                        '0.500848'

========================== row from database ==========================
                                              'id'  1447556
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1911/Alma Gluck - From The Land Of The Sky-Blue Water 1911.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  117
                                           'genre'  prerock-vocal
                                        'filesize'  2344754
                                           'mtime'  1620666073
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1911 Blue 1911 prerock vocal
                                      'tag_artist'  Alma Gluck
                                     'tag_release'  Victor 64190
                                       'tag_title'  From The Land Of The Sky-blue Water
                                             'bpm'  145.895
                                    'search_title'  'blue':6 'from':1 'land':3 'of':4 'sky':5 'skyblue':7 'the':2 'water':8
                                   'search_artist'  'alma':1 'gluck':2
                                  'search_release'  '64190':2 'victor':1
                                     'search_rest'  '00oldiepop':5 '1911':6 'blue':7 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':8 'vocal':9
                                    'search_combo'  '00oldiepop':17 '1911':18 '64190':12C 'alma':9B 'blue':6A,19 'country':16 'exotica':14 'from':1A 'gluck':10B 'jazz':13 'land':3A 'of':4A 'oldies':15 'prerock':20 'sky':5A 'skyblue':7A 'the':2A 'victor':11C 'vocal':21 'water':8A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['all', 'soprano', 'gramophone', 'classical', 'amazing']
                                        'tag_date'  1911
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620666072.9025302  (2021-05-10 19:01:12)
                             'size'  2344754