======================== unified (from filesystem) ========================
                                         'bitrate'  '112.0'
                                        'duration'  '185'
                                          'artist'  'Guy Lombardo & His Royal Canadians'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'I Raised My Hat'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['jazz', 'classic swing', 'christmas', 'swing', 'canadian']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1934'
                                        'comments'  ''
                                           'genre'  'prerock-swing'
                                             'bpm'  '120.471'
                                             'key'  '6B'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         ('Debuted 1934 and peaked at #17 on Various Charts. Source: Pop Memories. '
 'Label/Number: Brunswick 6713. \r\n')
'COMM:ID3v1 Comment:XXX'                            'Debuted 1934 and peaked at #17'
'TBPM' (BPM (beats per minute))                     '120.471'
'TCON' (Content type, a.k.a. Genre)                 'prerock-swing'
'TDRC' (Recording time)                             '1934'
'TIT2' (Title/songname/content description)         'I Raised My Hat'
'TKEY' (Initial key)                                '6B'
'TPE1' (Lead performer(s)/Soloist(s))               'Guy Lombardo & His Royal Canadians'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['jazz', 'classic swing', 'christmas', 'swing', 'canadian']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.96 dB'
'TXXX:replaygain_track_peak'                        '0.490470'

========================== row from database ==========================
                                              'id'  674295
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1934/1934_256 - guy lombardo & his royal canadians (voc carmen lombardo) - i raised my hat (112 m 3.06).mp3
                                         'working'  None
                                         'bitrate'  112
                                    'duration_sec'  185
                                           'genre'  prerock-swing
                                        'filesize'  2599003
                                           'mtime'  1620560353
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1934 1934_256 guy lombardo his royal canadians (voc carmen lombardo) raised my hat (112 3.06) prerock swing
                                      'tag_artist'  Guy Lombardo & His Royal Canadians
                                     'tag_release'  None
                                       'tag_title'  I Raised My Hat
                                             'bpm'  120.471
                                    'search_title'  'hat':4 'i':1 'my':3 'raised':2
                                   'search_artist'  'canadians':5 'guy':1 'his':3 'lombardo':2 'royal':4
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '06':24 '112':21,22 '1934':6,7 '256':8 '3':23 '306':25 'canadians':13 'carmen':16 'country':4 'exotica':2 'guy':9 'hat':20 'his':11 'jazz':1 'lombardo':10,17 'my':19 'oldies':3 'prerock':26 'raised':18 'royal':12 'swing':27 'voc':14,15
                                    'search_combo'  '00oldiepop':14 '06':33 '112':30,31 '1934':15,16 '256':17 '3':32 '306':34 'canadians':9B,22 'carmen':25 'country':13 'exotica':11 'guy':5B,18 'hat':4A,29 'his':7B,20 'i':1A 'jazz':10 'lombardo':6B,19,26 'my':3A,28 'oldies':12 'prerock':35 'raised':2A,27 'royal':8B,21 'swing':36 'voc':23,24
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['jazz', 'classic swing', 'christmas', 'swing', 'canadian']
                                        'tag_date'  1934
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620560353.3082614  (2021-05-09 13:39:13)
                             'size'  2599003