======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '152'
                                          'artist'  'The Carter Family'
                                     'text_people'  ''
                                         'release'  'Shirley & Spinoza'
                                           'title'  'I Never Will Marry'
                                           'quals'  ("['Q-UNU-1', 'Q-JZFKS-1', 'Q-LOCALNESS-2', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', 'q-chart-1', "
 "'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                                      'lastfmtags'  "['30s', 'americana', 'country', 'bluegrass', 'folk', 'old timey']"
                                     'discogstags'  "['folk, world, & country']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1935'
                                        'comments'  ''
                                           'genre'  'set-pl-shirleyspinoza;set-pl-mor'
                                             'bpm'  '143.517'
                                             'key'  '2B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Shirley & Spinoza'
'TBPM' (BPM (beats per minute))                     '143.517'
'TCON' (Content type, a.k.a. Genre)                 ['set-pl-shirleyspinoza', 'set-pl-mor']
'TDRC' (Recording time)                             '1935'
'TIT2' (Title/songname/content description)         'I Never Will Marry'
'TKEY' (Initial key)                                '2B'
'TPE1' (Lead performer(s)/Soloist(s))               'The Carter Family'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TSSE' (Software/Hardware and settings used for encoding)  'Lavf52.87.1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:audiodatarate'                                '51'
'TXXX:bytelength'                                   '1825191'
'TXXX:canseekontime'                                'true'
'TXXX:discogstags'                                  'folk, world, & country'
'TXXX:duration'                                     '152'
'TXXX:framerate'                                    '20'
'TXXX:height'                                       '160'
'TXXX:lastfmtags'                                   ['30s', 'americana', 'country', 'bluegrass', 'folk', 'old timey']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.60 dB'
'TXXX:replaygain_track_peak'                        '0.529131'
'TXXX:sourcedata'                                   'BADC21444HH1316157646591927'
'TXXX:starttime'                                    '0'
'TXXX:totaldatarate'                                '96'
'TXXX:totalduration'                                '152'
'TXXX:videodatarate'                                '38'
'TXXX:width'                                        '208'

========================== row from database ==========================
                                              'id'  949246
                                            'path'  /data/Music/Bulk/sns/The Carter Family- I Never Will Marry.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  152
                                           'genre'  set-pl-shirleyspinoza;set-pl-mor
                                        'filesize'  4876288
                                           'mtime'  1620357099
                                   'redo_metaread'  0
                                        'rest_str'   sns set pl shirleyspinoza;set pl mor
                                      'tag_artist'  The Carter Family
                                     'tag_release'  Shirley & Spinoza
                                       'tag_title'  I Never Will Marry
                                             'bpm'  143.517
                                    'search_title'  'i':1 'marry':4 'never':2 'will':3
                                   'search_artist'  'carter':2 'family':3 'the':1
                                  'search_release'  'shirley':1 'spinoza':2
                                     'search_rest'  'mor':8 'pl':3 'set':2,5,7 'shirleyspinoza':4,6 'sns':1
                                    'search_combo'  'carter':6B 'family':7B 'i':1A 'marry':4A 'mor':17 'never':2A 'pl':12 'set':11,14,16 'shirley':8C 'shirleyspinoza':13,15 'sns':10 'spinoza':9C 'the':5B 'will':3A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  2B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-1', 'q-other-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['30s', 'americana', 'country', 'bluegrass', 'folk', 'old timey']
                                        'tag_date'  1935
                                     'discogstags'  ['folk, world, & country']

============================== file details ==============================
                                           'mtime'  1620357099.3843434  (2021-05-07 05:11:39)
                             'size'  4876288