======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '180'
                                          'artist'  'George Melachrino'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "Starlight Roof Waltz (tune 'Moeders Wil Is Wet')"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-2', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['orchester', 'classical', 'illstreet', 'pop', 'musical']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1948'
                                        'comments'  ''
                                           'genre'  'prerock-instrumental;mi-strings'
                                             'bpm'  '144.748'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '144.748'
'TCON' (Content type, a.k.a. Genre)                 ['prerock-instrumental', 'mi-strings']
'TDRC' (Recording time)                             '1948'
'TIT2' (Title/songname/content description)         "Starlight Roof Waltz (tune 'Moeders Wil Is Wet')"
'TKEY' (Initial key)                                '11B'
'TPE1' (Lead performer(s)/Soloist(s))               'George Melachrino'
'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'                                   ['orchester', 'classical', 'illstreet', 'pop', 'musical']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+2.41 dB'
'TXXX:replaygain_track_peak'                        '0.567911'

========================== row from database ==========================
                                              'id'  1498306
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1948/George Melachrino Strings - Starlight Roof Waltz (tune _Moeders Wil Is Wet_) 1948.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  180
                                           'genre'  prerock-instrumental;mi-strings
                                        'filesize'  3614514
                                           'mtime'  1621705299
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1948 Strings _Moeders Wet_) 1948 prerock instrumental;mi strings
                                      'tag_artist'  George Melachrino
                                     'tag_release'  None
                                       'tag_title'  Starlight Roof Waltz (tune 'Moeders Wil Is Wet')
                                             'bpm'  144.748
                                    'search_title'  'is':9 'moeders':6,7 'roof':2 'starlight':1 'tune':4,5 'waltz':3 'wet':10,11 'wil':8
                                   'search_artist'  'george':1 'melachrino':2
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1948':6 'country':4 'exotica':2 'instrumental':12,14 'jazz':1 'mi':13,15 'moeders':8 'oldies':3 'prerock':11 'strings':7 'wet':9,10
                                    'search_combo'  '00oldiepop':18 '1948':19 'country':17 'exotica':15 'george':12B 'instrumental':25,27 'is':9A 'jazz':14 'melachrino':13B 'mi':26,28 'moeders':6A,7A,21 'oldies':16 'prerock':24 'roof':2A 'starlight':1A 'strings':20 'tune':4A,5A 'waltz':3A 'wet':10A,11A,22,23 'wil':8A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', '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-4', 'Q-HAP-3', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  ['orchester', 'classical', 'illstreet', 'pop', 'musical']
                                        'tag_date'  1948
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621705298.690199  (2021-05-22 19:41:38)
                             'size'  3614514