======================== unified (from filesystem) ========================
                                         'bitrate'  '32.0'
                                        'duration'  '1753'
                                          'artist'  'Diamond Ring At Cut Rate Price'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Fibber McGee - Feb/01/1944'
                                           'quals'  ("['Q-OLDST-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'q-syn-1', 'q-bass-2', 'q-busy-2', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'nonmusic-speech-comedy or drama'
                                             'bpm'  '101.0'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '101.0'
'TCON' (Content type, a.k.a. Genre)                 'nonmusic-speech-comedy or drama'
'TIT2' (Title/songname/content description)         'Fibber McGee - Feb/01/1944'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Diamond Ring At Cut Rate Price'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'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'                        '+2.27 dB'
'TXXX:replaygain_track_peak'                        '0.631266'

========================== row from database ==========================
                                              'id'  727161
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Fibber McGee and Molly [32k]/Old Time Radio - Fibber Mcgee - diamond ring at cut rate price - feb 01 1944.mp3
                                         'working'  None
                                         'bitrate'  32
                                    'duration_sec'  1753
                                           'genre'  nonmusic-speech-comedy or drama
                                        'filesize'  7017797
                                           'mtime'  1620398162
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm and Molly [32k] Old Time Radio Mcgee diamond ring cut rate price feb nonmusic speech comedy or drama
                                      'tag_artist'  Diamond Ring At Cut Rate Price
                                     'tag_release'  None
                                       'tag_title'  Fibber McGee - Feb/01/1944
                                             'bpm'  101.0
                                    'search_title'  '01':4 '1944':5 'feb':3 'feb011944':6 'fibber':1 'gee':8 'mc':7 'mcgee':2
                                   'search_artist'  'at':3 'cut':4 'diamond':1 'price':6 'rate':5 'ring':2
                                  'search_release'  
                                     'search_rest'  '32k':3,4 'and':1 'comedy':17 'cut':11 'diamond':9 'drama':19 'feb':14 'mcgee':8 'molly':2 'nonmusic':15 'old':5 'or':18 'price':13 'radio':7 'rate':12 'ring':10 'speech':16 'time':6
                                    'search_combo'  '01':4A '1944':5A '32k':17,18 'and':15 'at':11B 'comedy':31 'cut':12B,25 'diamond':9B,23 'drama':33 'feb':3A,28 'feb011944':6A 'fibber':1A 'gee':8A 'mc':7A 'mcgee':2A,22 'molly':16 'nonmusic':29 'old':19 'or':32 'price':14B,27 'radio':21 'rate':13B,26 'ring':10B,24 'speech':30 'time':20
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           '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-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620398162.385125  (2021-05-07 16:36:02)
                             'size'  7017797