======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '276'
                                          'artist'  'Billy Jones & Ernest Hare'
                                     'text_people'  ''
                                         'release'  'Edison 51430'
                                           'title'  "It Ain't Gonna Rain No More"
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-JZFKS-2', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['perfect', 'vaudeville', '1920s', 'all', 'acoustic era']"
                                     'discogstags'  "['novelty', 'pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1924'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '113.326'
                                             'key'  '6B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Edison 51430'
'TBPM' (BPM (beats per minute))                     '113.326'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TDRC' (Recording time)                             '1924'
'TIT2' (Title/songname/content description)         "It Ain't Gonna Rain No More"
'TKEY' (Initial key)                                '6B'
'TPE1' (Lead performer(s)/Soloist(s))               'Billy Jones & Ernest Hare'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['novelty', 'pop']
'TXXX:lastfmtags'                                   ['perfect', 'vaudeville', '1920s', 'all', 'acoustic era']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'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'                        '+0.99 dB'
'TXXX:replaygain_track_peak'                        '0.575026'

========================== row from database ==========================
                                              'id'  1510437
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1924/Billy Jones & Ernest Hare - It Ain_t Gonna Rain No Mo_ 9-10-1924.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  276
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  5531292
                                           'mtime'  1620525513
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1924 Ain_t Mo_ 9 10 1924 prerock jb jazz unsorted
                                      'tag_artist'  Billy Jones & Ernest Hare
                                     'tag_release'  Edison 51430
                                       'tag_title'  It Ain't Gonna Rain No More
                                             'bpm'  113.326
                                    'search_title'  'ain':2 'aint':4 'gonna':5 'it':1 'more':8 'no':7 'rain':6 't':3
                                   'search_artist'  'billy':1 'ernest':3 'hare':4 'jones':2
                                  'search_release'  '51430':2 'edison':1
                                     'search_rest'  '00oldiepop':5 '1924':6 '9':10 'ain':7 'country':4 'exotica':2 'jazz':1 'jb':12 'mo':9 'oldies':3 'prerock':11 't':8 'unsorted':13
                                    'search_combo'  '00oldiepop':19 '1924':20 '51430':14C '9':24 'ain':2A,21 'aint':4A 'billy':9B 'country':18 'edison':13C 'ernest':11B 'exotica':16 'gonna':5A 'hare':12B 'it':1A 'jazz':15 'jb':26 'jones':10B 'mo':23 'more':8A 'no':7A 'oldies':17 'prerock':25 'rain':6A 't':3A,22 'unsorted':27
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6B
                                           '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-2', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['perfect', 'vaudeville', '1920s', 'all', 'acoustic era']
                                        'tag_date'  1924
                                     'discogstags'  ['novelty', 'pop']

============================== file details ==============================
                                           'mtime'  1620525512.973003  (2021-05-09 03:58:32)
                             'size'  5531292