======================== unified (from filesystem) ========================
                                         'bitrate'  '319.139'
                                        'duration'  '976'
                                          'artist'  '[unknown]'
                                     'text_people'  ''
                                         'release'  "Popeye's Songs About Health, Safety, Friendship & Manners"
                                           'title'  ('Shake Hands/ A Friend Is Someone You Like / I Have A Little Friend / A '
 'Friendly Town / Red & Green / When You Ride Your Bicycle / Never Play With '
 'Matches / Swimming')
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-1', "
 "'q-drums-2', 'q-other-1', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '01'
                                      'tracktotal'  ''
                                            'date'  '1963'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '89.1'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     "Popeye's Songs About Health, Safety, Friendship & Manners"
'TBPM' (BPM (beats per minute))                     '89.1'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TDRC' (Recording time)                             '1963'
'TENC' (Encoded by)                                 'Winamp 5.63'
'TIT2' (Title/songname/content description)         ('Shake Hands/ A Friend Is Someone You Like / I Have A Little Friend / A '
 'Friendly Town / Red & Green / When You Ride Your Bicycle / Never Play With '
 'Matches / Swimming')
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               'Jack Mercer & Mae Questel  (musical direction of Jim Timmens)'
'TPE2' (Band/orchestra/accompaniment)               '[unknown]'
'TRCK' (Track number/Position in set)               '01'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+4.01 dB'
'TXXX:replaygain_track_peak'                        '0.856944'

========================== row from database ==========================
                                              'id'  1534214
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/[unknown] - Popeye_s Songs About Health, Safety, Friendship & Manners (Jack Mercer, Mae Questel & musical direction of Jim Timmens)/Side A.mp3
                                         'working'  None
                                         'bitrate'  319
                                    'duration_sec'  976
                                           'genre'  electronic-unsorted
                                        'filesize'  38963630
                                           'mtime'  1620517030
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Popeye_s (Jack Mercer, Mae Questel musical direction of Jim Timmens) Side electronic unsorted
                                      'tag_artist'  [unknown]
                                     'tag_release'  Popeye's Songs About Health, Safety, Friendship & Manners
                                       'tag_title'  Shake Hands/ A Friend Is Someone You Like / I Have A Little Friend / A Friendly Town / Red & Green / When You Ride Your Bicycle / Never Play With Matches / Swimming
                                             'bpm'  89.1
                                    'search_title'  'a':4 'bicycle':20 'friend':5 'friendly':13 'green':16 'hands':2,3 'have':11 'i':10 'is':6 'like':9 'little':12 'matches':24 'never':21 'play':22 'red':15 'ride':18 'shake':1 'someone':7 'swimming':25 'town':14 'when':17 'with':23 'you':8 'your':19
                                   'search_artist'  'unknown':1,2
                                  'search_release'  'about':5 'friendship':10 'health':6,7 'manners':11 'popeye':1 'popeyes':3 's':2 'safety':8,9 'songs':4
                                     'search_rest'  'direction':10 'electronic':16 'jack':3,4 'jim':12 'mae':7 'mercer':5,6 'musical':9 'of':11 'popeye':1 'questel':8 's':2 'side':15 'timmens':13,14 'unsorted':17
                                    'search_combo'  'a':4A 'about':32C 'bicycle':20A 'direction':48 'electronic':54 'friend':5A 'friendly':13A 'friendship':37C 'green':16A 'hands':2A,3A 'have':11A 'health':33C,34C 'i':10A 'is':6A 'jack':41,42 'jim':50 'like':9A 'little':12A 'mae':45 'manners':38C 'matches':24A 'mercer':43,44 'musical':47 'never':21A 'of':49 'play':22A 'popeye':28C,39 'popeyes':30C 'questel':46 'red':15A 'ride':18A 's':29C,40 'safety':35C,36C 'shake':1A 'side':53 'someone':7A 'songs':31C 'swimming':25A 'timmens':51,52 'town':14A 'unknown':26B,27B 'unsorted':55 'when':17A 'with':23A 'you':8A 'your':19A
                                    'tag_tracknum'  1
                                      'num_images'  1
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-1', 'q-other-1', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1963
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620517029.5127964  (2021-05-09 01:37:09)
                             'size'  38963630