======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '168'
                                          'artist'  'Buddy JonesT'
                                     'text_people'  ''
                                         'release'  'Police Officer & a Honky Tonk Singer'
                                           'title'  'Shreveport County Jail Blues'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-3', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-3', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '13'
                                      'tracktotal'  ''
                                            'date'  '1935'
                                        'comments'  ''
                                           'genre'  'loc-namerica-country'
                                             'bpm'  '130.903'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Police Officer & a Honky Tonk Singer'
'TBPM' (BPM (beats per minute))                     '130.903'
'TCON' (Content type, a.k.a. Genre)                 'loc-namerica-country'
'TDRC' (Recording time)                             '1935'
'TIT2' (Title/songname/content description)         'Shreveport County Jail Blues'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Buddy Jones'
'TPE2' (Band/orchestra/accompaniment)               'Buddy JonesT'
'TRCK' (Track number/Position in set)               '13'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'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'                        '+1.84 dB'
'TXXX:replaygain_track_peak'                        '0.570669'

========================== row from database ==========================
                                              'id'  724409
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/BACM CD014 - Buddy Jones-Police Officer & Honky Tonk Singer @320/13 - Shreveport County Jail Blues.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  168
                                           'genre'  loc-namerica-country
                                        'filesize'  6730237
                                           'mtime'  1621627926
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country BACM CD014 @320 13 loc namerica country
                                      'tag_artist'  Buddy JonesT
                                     'tag_release'  Police Officer & a Honky Tonk Singer
                                       'tag_title'  Shreveport County Jail Blues
                                             'bpm'  130.903
                                    'search_title'  'blues':4 'county':2 'jail':3 'shreveport':1
                                   'search_artist'  'buddy':1 'jones':3 'jonest':2 't':4
                                  'search_release'  'a':3 'honky':4 'officer':2 'police':1 'singer':6 'tonk':5
                                     'search_rest'  '320':7 'bacm':5 'cd014':6 'country':4 'exotica':2 'jazz':1 'loc':8 'namerica':9 'oldies':3
                                    'search_combo'  '320':21 'a':11C 'bacm':19 'blues':4A 'buddy':5B 'cd014':20 'country':18 'county':2A 'exotica':16 'honky':12C 'jail':3A 'jazz':15 'jones':7B 'jonest':6B 'loc':22 'namerica':23 'officer':10C 'oldies':17 'police':9C 'shreveport':1A 'singer':14C 't':8B 'tonk':13C
                                    'tag_tracknum'  13
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1935
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621627926.4595988  (2021-05-21 22:12:06)
                             'size'  6730237