======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '179'
                                          'artist'  "Abe Elenkrig's Yidishe Orchestra"
                                     'text_people'  ''
                                         'release'  '[non-album tracks]'
                                           'title'  'Der Rebe Is Gegangen'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-LOCALNESS-3', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['jewish', 'yiddish', 'folk', 'klezmer']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1915'
                                        'comments'  ''
                                           'genre'  'loc-style-gypsy or balkan or klezmer;prerock-band;mi-brass'
                                             'bpm'  '96.668'
                                             'key'  '6B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     '[non-album tracks]'
'TBPM' (BPM (beats per minute))                     '96.668'
'TCON' (Content type, a.k.a. Genre)                 ['loc-style-gypsy or balkan or klezmer', 'prerock-band', 'mi-brass']
'TDRC' (Recording time)                             '1915'
'TIT2' (Title/songname/content description)         'Der Rebe Is Gegangen'
'TKEY' (Initial key)                                '6B'
'TPE1' (Lead performer(s)/Soloist(s))               "Abe Elenkrig's Yidishe Orchestra"
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['jewish', 'yiddish', 'folk', 'klezmer']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.04 dB'
'TXXX:replaygain_track_peak'                        '0.482286'

========================== row from database ==========================
                                              'id'  1499204
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1915/Abe Elenkrig_s Yidishe Orchestra - Der Rebe Is Gegangen 1915.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  179
                                           'genre'  loc-style-gypsy or balkan or klezmer;prerock-band;mi-brass
                                        'filesize'  3583794
                                           'mtime'  1620528111
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1915 Elenkrig_s 1915 loc style gypsy or balkan or klezmer;prerock band;mi brass
                                      'tag_artist'  Abe Elenkrig's Yidishe Orchestra
                                     'tag_release'  [non-album tracks]
                                       'tag_title'  Der Rebe Is Gegangen
                                             'bpm'  96.668
                                    'search_title'  'der':1 'gegangen':4 'is':3 'rebe':2
                                   'search_artist'  'abe':1 'elenkrig':2 'elenkrigs':4 'orchestra':6 's':3 'yidishe':5
                                  'search_release'  'album':2 'non':1 'nonalbum':3 'tracks':4,5
                                     'search_rest'  '00oldiepop':5 '1915':6 'balkan':13 'band':18,20 'brass':22 'country':4 'elenkrig':7 'exotica':2 'gypsy':11 'jazz':1 'klezmer':14,16 'loc':9 'mi':19,21 'oldies':3 'or':12 'prerock':15,17 's':8 'style':10
                                    'search_combo'  '00oldiepop':20 '1915':21 'abe':5B 'album':12C 'balkan':28 'band':33,35 'brass':37 'country':19 'der':1A 'elenkrig':6B,22 'elenkrigs':8B 'exotica':17 'gegangen':4A 'gypsy':26 'is':3A 'jazz':16 'klezmer':29,31 'loc':24 'mi':34,36 'non':11C 'nonalbum':13C 'oldies':18 'or':27 'orchestra':10B 'prerock':30,32 'rebe':2A 's':7B,23 'style':25 'tracks':14C,15C 'yidishe':9B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['jewish', 'yiddish', 'folk', 'klezmer']
                                        'tag_date'  1915
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620528110.9732783  (2021-05-09 04:41:50)
                             'size'  3583794