======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '176'
                                          'artist'  'Collins & Harlan'
                                     'text_people'  ''
                                         'release'  'Victor 18089 A'
                                           'title'  "I'm Saving Up The Means To Get To New Orleans"
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-JZFKS-2', '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-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['ragtime', 'early jazz', 'minstrel', 'acoustic era']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1916'
                                        'comments'  ''
                                           'genre'  'prerock-ragtime'
                                             'bpm'  '145.790'
                                             'key'  '7B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Victor 18089 A'
'TBPM' (BPM (beats per minute))                     '145.790'
'TCON' (Content type, a.k.a. Genre)                 'prerock-ragtime'
'TDRC' (Recording time)                             '1916'
'TIT2' (Title/songname/content description)         "I'm Saving Up The Means To Get To New Orleans"
'TKEY' (Initial key)                                '7B'
'TPE1' (Lead performer(s)/Soloist(s))               'Collins & Harlan'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['ragtime', 'early jazz', 'minstrel', 'acoustic era']
'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'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.75 dB'
'TXXX:replaygain_track_peak'                        '0.572172'

========================== row from database ==========================
                                              'id'  1512326
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1916/Collins & Harlan - I_m Saving Up The Means To Get To New Orleans 31-5-1916.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  176
                                           'genre'  prerock-ragtime
                                        'filesize'  3540786
                                           'mtime'  1620526725
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1916 I_m 31 5 1916 prerock ragtime
                                      'tag_artist'  Collins & Harlan
                                     'tag_release'  Victor 18089 A
                                       'tag_title'  I'm Saving Up The Means To Get To New Orleans
                                             'bpm'  145.79
                                    'search_title'  'get':9 'i':1 'im':3 'm':2 'means':7 'new':10 'orleans':11 'saving':4 'the':6 'to':8 'up':5
                                   'search_artist'  'collins':1 'harlan':2
                                  'search_release'  '18089':2 'a':3 'victor':1
                                     'search_rest'  '00oldiepop':5 '1916':6 '31':9 '5':10 'country':4 'exotica':2 'i':7 'jazz':1 'm':8 'oldies':3 'prerock':11 'ragtime':12
                                    'search_combo'  '00oldiepop':21 '18089':15C '1916':22 '31':25 '5':26 'a':16C 'collins':12B 'country':20 'exotica':18 'get':9A 'harlan':13B 'i':1A,23 'im':3A 'jazz':17 'm':2A,24 'means':7A 'new':10A 'oldies':19 'orleans':11A 'prerock':27 'ragtime':28 'saving':4A 'the':6A 'to':8A 'up':5A 'victor':14C
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  7B
                                           '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-2', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['ragtime', 'early jazz', 'minstrel', 'acoustic era']
                                        'tag_date'  1916
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620526725.2523234  (2021-05-09 04:18:45)
                             'size'  3540786