======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '165'
                                          'artist'  'Coleman Hawkins & Ramblers'
                                     'text_people'  ''
                                         'release'  'Decca Mx AM 150-1'
                                           'title'  'I Only Have Eyes For You'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-2', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-2', 'q-busy-2', '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'  "['jazz', 'saxophone', 'bebop', 'swing', 'tenor sax']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1935'
                                        'comments'  ''
                                           'genre'  'prerock-swing'
                                             'bpm'  '143.9'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:MusicMatch_Bio:eng'                           'Sound edited by Breda4@hotmail.com'
'TALB' (Album/Movie/Show title)                     'Decca Mx AM 150-1'
'TBPM' (BPM (beats per minute))                     '143.9'
'TCON' (Content type, a.k.a. Genre)                 'prerock-swing'
'TDRC' (Recording time)                             '1935-02-04'
'TIT2' (Title/songname/content description)         'I Only Have Eyes For You'
'TKEY' (Initial key)                                '1A'
'TLEN' (Length)                                     '165000'
'TPE1' (Lead performer(s)/Soloist(s))               'Coleman Hawkins & Ramblers'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['jazz', 'saxophone', 'bebop', 'swing', 'tenor sax']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'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'                        '+1.73 dB'
'TXXX:replaygain_track_peak'                        '0.462310'

========================== row from database ==========================
                                              'id'  1466131
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1935/Coleman Hawkins & Ramblers - I Only Have Eyes For You (1) 4-2-1935.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  165
                                           'genre'  prerock-swing
                                        'filesize'  3400248
                                           'mtime'  1620560696
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1935 (1) 4 2 1935 prerock swing
                                      'tag_artist'  Coleman Hawkins & Ramblers
                                     'tag_release'  Decca Mx AM 150-1
                                       'tag_title'  I Only Have Eyes For You
                                             'bpm'  143.9
                                    'search_title'  'eyes':4 'for':5 'have':3 'i':1 'only':2 'you':6
                                   'search_artist'  'coleman':1 'hawkins':2 'ramblers':3
                                  'search_release'  '1':5 '150':4 '1501':6 'am':3 'decca':1 'mx':2
                                     'search_rest'  '00oldiepop':5 '1':7,8 '1935':6 '2':10 '4':9 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':11 'swing':12
                                    'search_combo'  '00oldiepop':20 '1':14C,22,23 '150':13C '1501':15C '1935':21 '2':25 '4':24 'am':12C 'coleman':7B 'country':19 'decca':10C 'exotica':17 'eyes':4A 'for':5A 'have':3A 'hawkins':8B 'i':1A 'jazz':16 'mx':11C 'oldies':18 'only':2A 'prerock':26 'ramblers':9B 'swing':27 'you':6A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', '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-1', 'q-other-3', 'Q-HAP-3', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  ['jazz', 'saxophone', 'bebop', 'swing', 'tenor sax']
                                        'tag_date'  1935
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620560695.5330656  (2021-05-09 13:44:55)
                             'size'  3400248