======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '194'
                                          'artist'  'Joe Venuti'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "Hiawatha's Lullaby"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'Q-PLAY-2', 'q-bass-1', 'q-busy-2', 'q-grit-1', "
 "'Q-PIANO-2', 'q-chart-1', 'q-drums-1', 'q-other-4', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['violin', '1301fh', 'jazz', 'loved1301', 'jazz violin']"
                                     'discogstags'  "['jazz']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1933'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-soft-swing'
                                             'bpm'  '85.6'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:MusicMatch_Bio:eng'                           'Sound edited by Breda4@hotmail.com'
'TBPM' (BPM (beats per minute))                     '85.6'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-soft-swing'
'TDRC' (Recording time)                             '1933-05-08'
'TIT2' (Title/songname/content description)         "Hiawatha's Lullaby"
'TKEY' (Initial key)                                '6A'
'TLEN' (Length)                                     '194000'
'TPE1' (Lead performer(s)/Soloist(s))               'Joe Venuti'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'jazz'
'TXXX:lastfmtags'                                   ['violin', '1301fh', 'jazz', 'loved1301', 'jazz violin']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+2.21 dB'
'TXXX:replaygain_track_peak'                        '0.533120'

========================== row from database ==========================
                                              'id'  1508920
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1933/Joe Venuti - Hiawatha_s Lullaby (Blue Four) 8-5-1933.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  194
                                           'genre'  prerock-jb-jazz-soft-swing
                                        'filesize'  3906101
                                           'mtime'  1620525999
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1933 Hiawatha_s (Blue Four) 8 5 1933 prerock jb jazz soft swing
                                      'tag_artist'  Joe Venuti
                                     'tag_release'  None
                                       'tag_title'  Hiawatha's Lullaby
                                             'bpm'  85.6
                                    'search_title'  'hiawatha':1 'hiawathas':3 'lullaby':4 's':2
                                   'search_artist'  'joe':1 'venuti':2
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1933':6 '5':14 '8':13 'blue':9,10 'country':4 'exotica':2 'four':11,12 'hiawatha':7 'jazz':1 'jb':16 'oldies':3 'prerock':15 's':8 'soft':17 'swing':18
                                    'search_combo'  '00oldiepop':11 '1933':12 '5':20 '8':19 'blue':15,16 'country':10 'exotica':8 'four':17,18 'hiawatha':1A,13 'hiawathas':3A 'jazz':7 'jb':22 'joe':5B 'lullaby':4A 'oldies':9 'prerock':21 's':2A,14 'soft':23 'swing':24 'venuti':6B
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-2', 'q-mixbeat-1', 'Q-PIANO-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['violin', '1301fh', 'jazz', 'loved1301', 'jazz violin']
                                        'tag_date'  1933
                                     'discogstags'  ['jazz']

============================== file details ==============================
                                           'mtime'  1620525999.2027166  (2021-05-09 04:06:39)
                             'size'  3906101