======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '177'
                                          'artist'  'Joseph Spence'
                                     'text_people'  ''
                                         'release'  'Good Morning Mr. Walker'
                                           'title'  "The Lord's My Shepherd [#]"
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-2', 'Q-JZFKS-3', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-3', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['11', 'blues', 'gospel', 'folk', 'fingerstyle']"
                                     'discogstags'  "['folk, world, & country', 'folk']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '17'
                                      'tracktotal'  '21'
                                            'date'  '1971'
                                        'comments'  ''
                                           'genre'  'prerock-jb-blues'
                                             'bpm'  '103.9'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
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'TALB' (Album/Movie/Show title)                     'Good Morning Mr. Walker'
'TBPM' (BPM (beats per minute))                     '103.9'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-blues'
'TDRC' (Recording time)                             '1971'
'TIT2' (Title/songname/content description)         "The Lord's My Shepherd [#]"
'TKEY' (Initial key)                                '1A'
'TLEN' (Length)                                     '177162'
'TPE1' (Lead performer(s)/Soloist(s))               'Joseph Spence'
'TPE2' (Band/orchestra/accompaniment)               'Joseph Spence'
'TPUB' (Publisher)                                  'Arhoolie'
'TRCK' (Track number/Position in set)               '17/21'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['folk, world, & country', 'folk']
'TXXX:lastfmtags'                                   ['11', 'blues', 'gospel', 'folk', 'fingerstyle']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'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'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+4.37 dB'
'TXXX:replaygain_track_peak'                        '0.935959'

========================== row from database ==========================
                                              'id'  1365762
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Joseph Spence - Good Morning Mr. Walker/17 the lords my shepherd [#].mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  177
                                           'genre'  prerock-jb-blues
                                        'filesize'  3645808
                                           'mtime'  1620402347
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 17 the lords my shepherd prerock jb blues
                                      'tag_artist'  Joseph Spence
                                     'tag_release'  Good Morning Mr. Walker
                                       'tag_title'  The Lord's My Shepherd [#]
                                             'bpm'  103.9
                                    'search_title'  'lord':2 'lords':4 'my':5 's':3 'shepherd':6 'the':1
                                   'search_artist'  'joseph':1 'spence':2
                                  'search_release'  'good':1 'morning':2 'mr':3,4 'walker':5
                                     'search_rest'  'blues':11 'country':4 'exotica':2 'jazz':1 'jb':10 'lords':6 'my':7 'oldies':3 'prerock':9 'shepherd':8 'the':5
                                    'search_combo'  'blues':24 'country':17 'exotica':15 'good':9C 'jazz':14 'jb':23 'joseph':7B 'lord':2A 'lords':4A,19 'morning':10C 'mr':11C,12C 'my':5A,20 'oldies':16 'prerock':22 's':3A 'shepherd':6A,21 'spence':8B 'the':1A,18 'walker':13C
                                    'tag_tracknum'  17
                                      '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-3', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['11', 'blues', 'gospel', 'folk', 'fingerstyle']
                                        'tag_date'  1971
                                     'discogstags'  ['folk, world, & country', 'folk']

============================== file details ==============================
                                           'mtime'  1620402346.925289  (2021-05-07 17:45:46)
                             'size'  3645808