======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '143'
                                          'artist'  'Perry Como'
                                     'text_people'  ''
                                         'release'  'US-Billboard-Charts'
                                           'title'  "Look Out The Window (And See How I'm Standing In The Rain)"
                                           '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-2', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['oldies', 'male vocalists', 'jazz', '50s', 'easy listening', 'christmas']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '67'
                                      'tracktotal'  ''
                                            'date'  '1954'
                                        'comments'  ''
                                           'genre'  'prerock-vocal-easy'
                                             'bpm'  '125.393'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         '54-235 POS 24'
'COMM:ID3v1 Comment:XXX'                            '54-235 POS 24'
'TALB' (Album/Movie/Show title)                     'US-Billboard-Charts'
'TBPM' (BPM (beats per minute))                     '125.393'
'TCON' (Content type, a.k.a. Genre)                 'prerock-vocal-easy'
'TDRC' (Recording time)                             '1954'
'TIT2' (Title/songname/content description)         "Look Out The Window (And See How I'm Standing In The Rain)"
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Perry Como'
'TRCK' (Track number/Position in set)               '67'
'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'                                   ['oldies', 'male vocalists', 'jazz', '50s', 'easy listening', 'christmas']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.26 dB'
'TXXX:replaygain_track_peak'                        '0.418608'

========================== row from database ==========================
                                              'id'  1508094
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1954/54-235 - Perry Como - Look Out The Window (And See How I_m Standing In The Rain).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  143
                                           'genre'  prerock-vocal-easy
                                        'filesize'  5733271
                                           'mtime'  1621625769
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1954 54 235 I_m prerock vocal easy
                                      'tag_artist'  Perry Como
                                     'tag_release'  US-Billboard-Charts
                                       'tag_title'  Look Out The Window (And See How I'm Standing In The Rain)
                                             'bpm'  125.393
                                    'search_title'  'and':5,6 'how':8 'i':9 'im':11 'in':13 'look':1 'm':10 'out':2 'rain':14,15 'see':7 'standing':12 'the':3 'window':4
                                   'search_artist'  'como':2 'perry':1
                                  'search_release'  'billboard':2 'charts':3 'us':1 'usbillboardcharts':4
                                     'search_rest'  '00oldiepop':5 '1954':6 '235':8 '54':7 'country':4 'easy':13 'exotica':2 'i':9 'jazz':1 'm':10 'oldies':3 'prerock':11 'vocal':12
                                    'search_combo'  '00oldiepop':26 '1954':27 '235':29 '54':28 'and':5A,6A 'billboard':19C 'charts':20C 'como':17B 'country':25 'easy':34 'exotica':23 'how':8A 'i':9A,30 'im':11A 'in':13A 'jazz':22 'look':1A 'm':10A,31 'oldies':24 'out':2A 'perry':16B 'prerock':32 'rain':14A,15A 'see':7A 'standing':12A 'the':3A 'us':18C 'usbillboardcharts':21C 'vocal':33 'window':4A
                                    'tag_tracknum'  67
                                      'num_images'  0
                                             'key'  10A
                                           '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-2', 'q-syn-1', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['oldies', 'male vocalists', 'jazz', '50s', 'easy listening', 'christmas']
                                        'tag_date'  1954
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621625768.6810844  (2021-05-21 21:36:08)
                             'size'  5733271